Overnight temperatures were close to average and daytime temperatures were above average at Ferny Grove during summer. In the Brisbane area most of the official sites observed close to average mean minimum temperatures. Daytime temperatures were however above average and at least 2 ºC above average at the inland sites. Rainfall during summer was very low and the lowest summer rainfall since 1996-97. Similarly all of the official sites observed below average rainfall and was record low at many sites. During summer air pressure was close to average, well below average mean minimum humidity and below average mean maximum humidity and mean humidity, below average mean minimum dew point, above average mean maximum dew point and near average mean dew point, above average wind speed and 5 thunderstorms.
Seasonal Mean Minimum Temperature: 20.4 C, 0.4 ºC above average and 1.2 ºC higher than same season in 2017-18. This is the equal third highest on record and the equal highest since 20.4 ºC in 2016-17. Over summer mean minimum temperatures in the Brisbane area were above average at most sites, though some inland sites were close to average. The sites measuring close to average mean minimum temperatures within 0.5 ºC of the long term average were Amberley (19.3 ºC and 0.1 ºC above average), Point Lookout (22.7 ºC and 0.5 ºC above average), Beaudesert (19.1 ºC and 0.3 ºC above average) and Gatton (18.6 ºC and 0.1 ºC below average) and was the lowest mean minimum temperature observed of the official sites and the lowest below average. The rest of the site observed mean minimum temperatures that were 0.7 ºC to 0.9 ºC above average. The highest mean minimum temperature was 22.6 ºC at Cape Moreton Lighthouse and 0.9 ºC above average. 0.9 ºC above average was also observed at Archerfield with 20.7 ºC observed. Brisbane observed a mean minimum temperature of 21.8 ºC which was 0.7 ºC above average.
Lowest Monthly Mean Minimum Temperature (December): 19.5 ºC, 0.5 ºC above average and 0.7 ºC higher than same month in 2017. This is the equal third highest on record for December and the highest since 20 ºC in 2014. Most of the official sites in the Brisbane area observed above average mean minimum temperatures. Some of these temperatures were close to the long term average and within 0.5 ºC of the average. The other sites were 0.6 C and the highest was 0.7 ºC above average. The highest above average was Brisbane Aero at 20.8 ºC, Logan City Treatment Plant at 19.9 ºC and Redcliffe at 21.6 ºC. Amberley was equal to the long term average with a mean temperature of 18.4 ºC, while Gatton measured the lowest mean minimum temperature of 17.6 ºC which was 0.5 ºC below average and the only site measuring a below average mean minimum temperature. Brisbane observed a mean minimum temperature of 20.8 ºC (0.4 ºC above average).
Highest Monthly Mean Average Minimum Temperature (February): 20.9 ºC, 0.7 ºC above average and 1.2 ºC higher than same month in 2018. This is the second highest on record for February and the highest since the record high of 21.4 ºC in 2010. All official sites in the Brisbane area measured above average mean minimum temperatures, but were within 0.5 C of the long term average at some sites. The highest anomaly from the long term average was 0.8 ºC above average at Archerfield (20.9 ºC), Cape Moreton Lighthouse (22.8 ºC) and Logan City Treatment Plant (21.3 ºC). The sites that measured close to average mean minimum temperatures ranged between 0.1 ºC above average at Beerburrum (20 ºC) and Gatton (19.1 ºC which was the lowest mean minimum temperature observed) and 0.5 ºC above average at Redcliffe (22.4 ºC). The highest mean minimum temperature was 22.8 ºC at Point Lookout (0.2 ºC above average). Brisbane observed a mean minimum temperature of 22 C (0.6 ºC above average).
Monthly Mean Minimum Temperature for January: 20.8 ºC, equal to long term average and 1.7 ºC higher than same month in 2018. This is the fifth highest on record for January and the highest since 21.4 ºC in 2017. Official sites in the Brisbane area measured above average mean minimum temperatures, with some sites close to the long term average. The sites measuring above average mean minimum temperatures ranged between 0.6 ºC above average at Logan City Treatment Plant with a mean minimum temperature of 21.2 ºC and 1.5 ºC above average at Cape Moreton Lighthouse which measured a mean minimum temperature of 23.5 ºC. All of these sites measuring above average mean minimum temperatures were in coastal locations and were at least 1 ºC above average except for Logan City Treatment Plant. The remaining sites which were the inland sites recorded mean minimum temperatures ranging between equalling the long term average at Gatton with a mean minimum temperature of 19.1 ºC and 0.4 ºC above average at Beaudesert (19.6 ºC). Gatton observed the lowest mean minimum temperature while the highest was 23.4 ºC at Redcliffe (1.2 ºC above average). Brisbane observed a mean minimum temperature of 22.7 ºC (1.2 ºC above average).
Seasonal Mean Maximum Temperature: 31.2 ºC, 0.9 ºC above average 0.5 ºC lower than in 2017-18. This is the fifth highest on record and the lowest since 30.5 ºC in 2014-15. All of the official sites in the Brisbane area observed above average mean maximum temperatures in summer were at least 1 ºC above average at most sites and at least 2 ºC above average at the inland sites. The lowest mean maximum was 29.2 ºC at Redland (Alexandra Hills) and lowest anomaly from the long term average was 0.7 ºC at Brisbane Airport (29.5 ºC). The highest mean maximum temperature was 34.1 ºC at Gatton (2.8 ºC above average which was the highest of all the official sites). Sites also measuring mean maximum temperatures of at least 2 ºC above average were Amberley (32.8 ºC) and Beaudesert (31.7 ºC). Brisbane observed a mean maximum temperature of 31.2 ºC (1.2 ºC above average). This is the equal second-highest mean maximum temperature at this site (equal with summer 2005-06, highest is 31.3 °C in summer 2016-17). Gatton measured its second-warmest summer mean maximum temperature on record (highest is 34.2 °C in summer 2016-17).
Lowest Monthly Mean Average Maximum Temperature (December): 30.4 ºC, 0.5 ºC above average and 1.3 ºC lower than same month in 2017. This is fourth lowest on record and the lowest since 29.5 ºC in 2015. All of the official sites in the Brisbane area measured above average mean maximum temperatures. Some of these sites were close to average, while many were at least 1 ºC above average. The highest above average was Gatton at 1.8 C above average with mean maximum temperature of 33.1 ºC. This was also the highest mean maximum temperature observed. The other sites measured mean maximum temperatures of at least 1 ºC above average was Amberley at 31.8 C (+1.0 ºC of the average), Archerfield at 30.6 ºC (+1 ºC), Beaudesert at 31.5 (+1.2 ºC) and Cape Moreton Lighthouse at 27.1 ºC (+1 C) which was the lowest mean maximum temperature observed. The lowest anomaly from the long term average was 0.1 C above average at Beerburrum with a mean maximum of 29.8 C and Logan City Treatment Plant with a mean maximum temperature of 29.2 C. Brisbane recorded a mean maximum temperature of 30.1 C which is 0.7 C above average.
Highest Monthly Mean Maximum Temperature (January): 32 ºC, 1.2 ºC above average and 0.9 ºC lower than same month in 2018. This is fourth highest on record for January and the lowest since 30.5 ºC in 2016. All of the official stations measured above average mean maximum temperatures for January and many sites were well above average being 2 ºC or higher than the long term average. The highest above average and the highest mean maximum temperature was Gatton with a mean maximum temperature of 35.2 ºC being 3.6 ºC above average. Amberley, Beaudesert, Cape Moreton Lighthouse and Point Lookout also measured mean maximum temperatures of at least 2 ºC above average. The lowest mean maximum temperature was 29.9 ºC at Redland (Alexandra Hills), while the closest to the long term average was 1.2 ºC above average at Redcliffe. All sites that were less than 2 ºC above average were the coastal locations. Brisbane measured a mean maximum of 31.9 ºC (1.5 ºC above average). Logan City Treatment Plant observed a new record high of 31.4 ºC exceeding the old record of 31.3 ºC in 2017. Cape Moreton Lighthouse (29.5 ºC) and Gatton (35.2 ºC) equalled existing record high mean maximum temperatures.
Monthly Mean Maximum Temperature for February: 31.2 ºC, 1.1 ºC above average and 0.7 ºC higher than same month in 2018. This is third highest on record for February and the highest since 34 ºC in 2017. All of the official sites in the Brisbane area observed above average mean maximum temperatures of at least 1 ºC at all but one site and at 2 ºC to 3 ºC above average at the inland sites. The highest above average was Gatton with a mean maximum temperature of 34.1 ºC which was 3.3 ºC above average. This was also the highest mean maximum temperature recorded. In addition sites measuring at least 2 ºC above average were Amberley (2.9 ºC above average, mean maximum of 33.3 ºC), Archerfield (2.4 ºC above average, mean maximum temperature of 32.2 ºC) and Beaudesert (2.4 ºC above average, mean maximum temperature of 33 ºC). The lowest mean maximum temperature was 28.5 ºC at Cape Moreton Lighthouse (1.6 ºC above average). Brisbane Aero observed the lowest mean maximum temperature anomaly of 0.7 ºC above average with a mean maximum temperature of 29.7 ºC. Brisbane observed a mean maximum temperature of 31.6 ºC which was 1.5 ºC above average.
Seasonal Mean Temperature: 25.8 C, 0.7 C above average and 0.4 ºC higher than same season in 2017-18. This is the lowest since 26.7 ºC in 2016-17 and the third highest on record.
Lowest Mean Monthly Temperature (December): 24.9 ºC, equal to long term average and 0.3 ºC lower than same month in 2017. This is the fifth highest and lowest on record and the lowest since 24 ºC in 2015.
Highest Mean Monthly Temperature (February): 26.0 ºC, 0.9 ºC above average and 0.9 ºC higher than same month in 2018. This is the third highest on record for February and the highest since 27.3 ºC in 2017.
Mean Monthly Temperature (January) 26.4 ºC, 0.6 ºC above average and 0.4 ºC higher than same month in 2018. This is the third highest on record for January and the highest since 26.8 ºC in 2017. Brisbane Aero recorded a new record high for January mean temperature of 26.5 ºC (old record was 26.3 ºC in 2017).
Lowest Temperature: 14.9 ºC at 4:56 AM on 26 December 2018. Same month in 2017 was 13.8 ºC. This is the second lowest monthly minimum temperature for December, the highest since the current record low of 16.6 ºC on 3 December 2009, equal twenty-sixth lowest daily December minimum temperature and the lowest since 15.7 ºC on 14 December 2017 at 5:34 AM. For summer this is the second highest minimum temperature on record, the highest since the current record of 16.6 ºC in 2009-10 on the 3 December 2009, equal fifteenth lowest daily minimum temperature and the lowest since 14.2 ºC on 9 February 2018 at 5:52 AM. Official stations in the Brisbane area measured the lowest temperature of the month on the 25th and 26th and at some sites on the 6th and 17th. The lowest was 12 ºC at Gatton on the 25th and the highest was 19.8 ºC at Point Lookout on the 6th. The lowest temperature at Brisbane was 17.2 ºC on the 26th. A cool southerly change brought below average overnight temperatures in the second week of the month and then easing back to close to average temperatures during the middle of the month. Cool nights returned for nights during the last week of the month. The lowest temperature for the season for the official sites ranged between 12 ºC at Gatton on 25 December 2018 and 19.8 ºC at Point Lookout on 6 December 2018. For summer the lowest observed temperature at Brisbane was 17.2 ºC on 26 December 2018.
Lowest Monthly Minimum Temperature (for January): 18.5 ºC at 5:11 AM on 18 January 2019. Same month in 2018 was 13.8 ºC. This is the second highest monthly minimum temperature for January, the current record high being 21 ºC on 3rd, 18th, 25th, 26th and 29th January 2010, equal twenty-sixth lowest daily January minimum temperature and the lowest since 18.3 ºC on 23 January 2018 at 5:06 AM. Official stations in the Brisbane area observed the lowest temperature of the month on the 12th at many sites and at some sites on the 2nd, 3rd, 18th, 19th and 20th. The lowest was 15.1 ºC at Gatton on the 12th and the highest was 21.9 ºC at Cape Moreton Lighthouse on the 3rd. The lowest temperature at Brisbane was 20.2 ºC on the 12th which was the highest for January at the current site. There were some cool nights in the Brisbane area, on some days during the middle of the month and in a first few days of the month.
Highest Temperature: 39.8 ºC at 2:47 PM on 21 December 2018. Same month in 2017 was 36.5 ºC and this season in 2017-18 was 38.0 ºC. This is the highest monthly and daily maximum temperature for December, exceeding the old record of 38.5 ºC on 4 December 2012 at 3:10 PM. For summer this is the third highest seasonal and daily maximum temperature and the highest since 40.5 ºC in 2016-17 on 12 February 2017 at 1:06 PM. The official sites measured the highest temperature for the month on the 2nd at many sites and at some sites on 1st, 19th, 21st, 22nd and 29th. The lowest was 29.3 ºC at Cape Moreton on the 19th and the highest was 41.1 ºC at Gatton on the 21st. Brisbane observed its highest temperature of 35.7 ºC on the 22nd. The official sites saw above average daytime temperatures at the start of the month during a low intensity heatwave. Well above average daytime temperatures were also observed between the 20th and 21st. The highest temperature for the season for the official sites ranged between 30.9 ºC at Cape Moreton on 10 February 2019 and 42.9 ºC at Gatton on 13 February 2019. For summer the highest observed temperature at Brisbane was 35.7 ºC on 22 December 2018. Brisbane and Archerfield observed a consecutive period of 46 days at or above 30 °C from 10 January to 24 February 2019. Brisbane had a record run of 18 days in a row at or above 32 °C ending on 2 February 2019, a record for any month.
Lowest Maximum Temperature: 23.9 ºC at 9:00 AM on 16 December 2018. This is the third lowest monthly December lowest maximum temperature, the lowest since 18.9 ºC in 2011 on 7 December at 4:36 PM, the ninth lowest daily maximum temperature for December and the lowest since 23.4 ºC on 8 December 2011 at 3:28 PM. For summer this is the fourth highest seasonal lowest maximum temperature on record, the highest since 25.1 ºC in 2016-17 on the 25 December 2016 at 8:39 AM, the fourteenth lowest daily maximum temperature and the lowest since 22.2 ºC on 3 February 2018 at 8:55 AM. This month in 2017 was 27.1 ºC and this season in 2017-18 was 21.5 ºC. Official stations in the Brisbane area measured the coolest day at most sites on the 7th and 16th and at some sites on the 6th and 9th. These ranged between 23.9 ºC at Cape Moreton Lighthouse on the 7th and 26.2 ºC at Beaudesert on the 7th and Gatton on the 16th. The lowest maximum temperature at Brisbane was 25.7 ºC on the 7th. The official sites measured cool days during the second week of the month after a cool southerly change before returning to near average during the middle of the month. Cool days also associated with the remnants of ex-tropical cyclone Owen that moved thorough on the 16th to 18th. For summer the lowest observed maximum temperature at Brisbane was 25.7 ºC on 7 December 2018.
Highest Minimum Temperature: 25 ºC on 14 February 2019 at 5:55 AM. This is the third highest monthly February highest minimum temperature, the lowest since 24.6 ºC in 2016 on 19 February at 6:04 AM, the equal third highest daily minimum temperature for February and the highest since 25.2 ºC on 13 February 2018 at 6:15 AM. For summer this is the third highest minimum temperature, the lowest since 24.6 ºC in 2015-16 on 19 February 2017 at 6:05 AM, equal fourth highest daily minimum temperature and the equal highest since 25 ºC on 16 February 2018 at 6:42 AM. This month in 2018 was 25.2 ºC and this season in 2017-18 was 25.2 ºC. Official stations in the Brisbane area measured the warmest night at most sites on the 14th and at some sites on the 13th, 15th and 21st. These ranged between 24.8 ºC at Amberley and Beaudesert on the 14th and 26.2 ºC at Logan City Treatment Plant on the 15th and Redcliffe on the 14th. The highest minimum temperature at Brisbane was 25.4 ºC on the 14 February 2019 for the month and season. Much of the overnight temperatures in the Brisbane area were above average and was less frequent in the second half of the month. Brisbane during summer had a run of 57 nights at or above 20 °C, two days short of the record set in 1978.
Seasonal Average Minimum Grass Temperature: 18.6 ºC (0.1 C higher than same season in 2017)
Lowest Seasonal Minimum Grass Temperature: 13 ºC on 25 and 26 December 2018 (0.8 ºC lower than same month in 2017). This was with a minimum temperature of 15.2 C on 25 December and the lowest minimum temperature for the month on 26 December of 14.9 C.
Highest Seasonal Minimum Grass Temperature: 22.6 ºC on 14 February 2019 (1.4 ºC lower than same month in 2018). This coincided with the highest minimum air temperature of 25 ºC for the month.
Highest Minimum Grass Temperature Depression: 2.8 ºC on 17 February 2019 with a minimum grass temperature of 16.3 ºC and an air temperature of 19.1 ºC.
Lowest Minimum Grass Temperature Depression: 0.1 ºC on 6 February 2019 with a minimum grass temperature of 20.9 ºC and an air temperature of 21 ºC.
The monthly mean temperature for December was 0.5 ºC above average with a mean temperature recorded as 24.9 ºC. January was 0.6 ºC above average with a mean temperature of 26.4 ºC and February was 0.9 ºC above average with a mean temperature of 26 ºC. In December the mean minimum temperature was 0.5 ºC above average with a mean minimum temperature of 19.5 ºC, easing to equal to the long term average in January with a mean minimum temperature of 20.8 ºC. February saw a mean minimum temperature of 20.9 ºC which was 0.7 ºC above average. The December mean maximum temperature was 0.5 ºC above average with an observed mean maximum temperature of 30.4 ºC. January was 0.6 ºC above average with a mean maximum temperature of 32 ºC while February warmed to 0.9 ºC above average at an observed mean maximum temperature of 31.2 ºC. The mean minimum temperature for the season was 20.4 ºC (0.4 ºC above average), the mean maximum temperature was 0.9 C above average with a mean maximum temperature of 31.2 ºC with the seasonal mean temperature being 0.7 ºC above average with a temperature of 25.8 ºC.
In December minimum temperatures were warm during the middle of the month and some of the start of the month. Cool nights were present at the end of the month. The 1st was 2 ºC above average, and warming to 4 ºC above average on the 3rd and the highest for the month. There were 9 warm nights from the 14th. The 14th and 15th was 3 ºC above average, the 16th was 4 ºC above average, 3 ºC above average on the 17th and 3 ºC above average on the 18th. The 19th and 20th was 3 ºC above average, the 21st was 4 ºC above average and the 22nd was 3 ºC above average. It cooled to 4 ºC below average on the 25th and the coolest temperature of the month on the 26th.
Minimum temperatures during January were generally close to or below average with some warm nights early in the month and on some nights at the end of the month. The 2nd was 2 ºC below average before a warmer than normal from the 6th to 10th of up to 2 C above average. The 8th was 2 ºC above average and the 10th was 2 ºC above average. It was then cooler from the 11th with the 12th was 2 ºC below average and the 13th was 1 ºC below average. After close to normal temperatures it was 2 ºC below average on the 18th, 3 ºC below average on the 19th and then back to near average from the 20th. It warmed to 2 ºC above average on the 24th and 2 ºC above average on the 25th.
Minimum temperatures during February were mostly above average with some close to average nights. Cool nights were confined to some days over the second half of the month. The 2nd, 8th and 10th was 2 ºC above average. The 11th was 2 ºC above average, while the 13th was 2 ºC above average. The 14th saw the highest temperature and was 5 ºC above average and cooling to 2 ºC below average on the 15th. A short cool period followed with near average temperatures except for 2 ºC below average on the 19th. The 21st warmed to 4 ºC above average and the 22nd was 3 ºC above average. At the end of the month it cooled again close to average except for 3 ºC below average on the 27th which was the lowest temperature for the month.
Maximum temperatures in December were high on a few days at the very start of the month and during the middle of the month. There were some cool days in first half of the month and otherwise close to average. The 1st was 6 ºC above average, and 7 ºC above average on the 2nd. A cool period then followed from the 5th. The 5th was 2 ºC below average on the 5th, 3 ºC below average on the 6th, 6 ºC below average on the 7th and 5 ºC below average on the 8th. The 9th was 2 ºC below average before a warm period with the 10th to 12th being 1 ºC above average. It fell to 6 ºC below average on the 16th. A short period of high temperature followed with the 20th being 6 ºC above average, the 21st was 10 ºC above average and the highest for the month and the 22nd was 6 ºC above average. It was then 3 ºC below average on the 23rd and 24th.
Maximum temperatures in January were almost entirely above average with some near or below average days in the first 10 days of the month. From the 15th to 31st maximum temperatures were between 2 and 4 ºC above average. The 1st and 2nd was 2 ºC above average and close to average until the 9th. From the 10th to end of the month was a warm spell with temperatures of between 32 and 34 ºC. It was 2 ºC above average on the 12th to 14th, 3 ºC above average on the 15th and 4 ºC above average on the 16th. The 17th was 3 ºC above average, 2 ºC above average on the 18th, 4 ºC above average on the 19th (the highest temperature for the month) and 3 ºC above average on the 20th. The 21st and 22nd was 2 ºC above average, 4 ºC above average on the 23rd, 3 ºC above average on the 24th to 28th. The 29th and 30th was 2 ºC above average and the 31st was 3 ºC above average.
Maximum temperatures of February were mostly above average with cool days mostly at the end of the month. The peak of the heat was during the middle of the month. Temperatures at the start of the month were close to average except for 3 ºC above average on the 1st. A warm to hot period then followed and interspersed with a slightly warm period. The 9th and 10th was 3 ºC above average, the 11th was 2 ºC above average warming to 6 ºC above average on the 12th and 7 ºC above average on the 13th which was the highest temperature for the month. The warmth returned with the 19th and 20th being 4 ºC above average, the 21st was 3 ºC above average and the 22nd was 2 ºC above average. Temperatures were close to average on the 23rd and 24th before 2 to 4 ºC below average temperatures from the 25th except for 1 ºC below average on the 27th.
Seasonal Mean Minimum Pressure: 1011.4 hPa (1.8 hPa higher than same season in 2017-18). This is the second highest on record and the highest since the current high record of 1016.4 hPa in 2009-10.
Monthly Mean Minimum Pressure (for January): 1013 hPa (3.7 hPa higher than same month in 2018). This is the second highest on record and highest since the record high of 1015.4 hPa in 2010.
Seasonal Mean Maximum Pressure: 1015.8 hPa (1.6 hPa higher than same season in 2017-18). This is the second highest on record and the highest since the current record high of 1018.1 hPa in 2009-10.
Monthly Mean Maximum Pressure (for January): 1016.8 hPa (3.2 hPa higher than same month in 2018). This is the second highest on record and the highest since the record high of 1016.9 hPa in 2010.
Seasonal Mean Pressure: 1013.6 hPa (0.5 hPa above average) and equal to same season in 2017-18. This is the highest since the current record high of 1017.2 hPa in 2009-10 and the second highest on record.
Monthly Mean Pressure (for January): 1014.9 hPa (2.7 hPa above average, 3.4 hPa higher than same month in 2018). This is the second highest on record and the highest since the current record high of 1016.1 hPa in 2010.
Lowest Seasonal Pressure: 1000.4 hPa on 2 December 2018 at 3:58 PM. The same month in 2017 saw 1000.4 hPa and this season in 2017-18 saw 1001.1 hPa. This is the fourth lowest monthly and daily air pressure for December and the lowest since 999.3 hPa on 5 December 2013 at 3:40 PM. For summer this is the fifth highest seasonal minimum air pressure, equal eleventh lowest daily minimum air pressure and the equal lowest since 1000 hPa on 14 February 2017 at 12:20 AM.
Monthly Lowest Pressure (for January): 1010.1 hPa on 23 January 2019 at 4:44 PM. The same month in 2018 saw 1001 hPa. This is the highest monthly and daily minimum air pressure for January exceeding the previous record of 1006 hPa on 18 January 2010.
Seasonal Highest Pressure: 1023.5 hPa on 25 February 2019 at 9:08 AM. The same month in 2018 saw 1019.7 hPa and same season in 2017-18 was 1022.8 hPa. This is the second highest February monthly and daily maximum air pressure and the highest since the record high of 1023.6 hPa in 2015 on 7 February at 9:16 AM. For spring this is the third highest seasonal and daily pressure on record and the highest since 1023.6 hPa in 2014-15 on 7 February 2015 at 9:16 AM.
Note: Air pressure measurements are being closely monitored to maintain its accuracy as much as possible. Over the season of spring, a difference of 0.14 hPa higher than the official BoM Brisbane site – No. 040913 was observed which is deemed to be optimum.
Seasonal Average Minimum Humidity: 44.1% (7 % lower than same season in 2017-18 and 11.2% below average). This is the lowest on record exceeding the previous record of 45.6% in 2009-10.
Monthly Mean Minimum Humidity (for December): 46 % (5.1 % lower than same month in 2017 and 7.1% below average). This is the second lowest on record whilst the record low is 38.7 % in 2009.
Monthly Mean Minimum Humidity (for November): 42.5 % (6.9 % lower than same month in 2018 and 13.1% below average). This is the second lowest on record with the record low being 40.5 % in 2010.
Monthly Mean Minimum Humidity (for February): 43.8 % (14.2 % lower than same month in 2018 and 13.5 % below average). This is the lowest on record exceeding the old record of 50 % in 2016.
Seasonal Average Maximum Humidity: 84.8% (6.4% lower than same season in 2017-18 and 7.5% below average). This is the lowest on record with the old record being 88.2% in 2010.
Monthly Mean Maximum Humidity (for December): 87.8 % (4.3 % lower than same month in 2017 and 4.6 % below average). This is second lowest on record and the lowest since the current record of 86 % in 2009.
Monthly Mean Maximum Humidity (for January): 85.7 % (3.7 % lower than same month in 2018 and 5.9 % below average). This is second lowest on record and the lowest since the current record low of 82.9 % in 2010.
Monthly Mean Maximum Humidity (for February): 81 % (12 % lower than same month in 2018 and 12 % below average). This is lowest on record exceeding the old record of 86.9 % in 2012.
Seasonal Mean Humidity: 64.4 % (6.7 % lower than same season in 2017-18 and 3.1 % below average). This is lowest on record beating the previous record of 66.9 % in 2009-10.
Monthly Mean Humidity (for December): 66.9 % (4.7 % lower than same month in 2017 and 5.8 % below average). This is the second lowest on record and the lowest since the current record low of 62.3 % in 2009.
Monthly Mean Humidity (for January): 66.9 % (4.7 % lower than same month in 2017 and 5.8 % below average). This is the second lowest on record and the lowest since the current record low of 61.7 % in 2010.
Monthly Mean Humidity (for February): 62.4 % (13.1 % lower than same month in 2017 and 12.7 % below average). This is the lowest on record exceeding the old record of 66.9 % in 2017.
Lowest Seasonal Humidity: 13% on 1 December 2018 at 12:23 PM (13% lower than this month in 2017 and 25% lower than same season in 2017-18). This is the second lowest minimum daily and monthly humidity on record for December and the lowest since the current record low of 10 % on 5 December 2012 at 5:15 PM. For summer on a seasonal and daily basis this is the second lowest minimum relative humidity and the lowest since the current record low of 10% on 5 December 2012 at 5:15 PM.
Monthly Lowest Humidity (for February): 28 % on 23 February 2019 at 3:17 PM (8 % lower than this month in 2018). This is the lowest monthly and daily minimum humidity for February on record exceeding the old record of 30 % on 1 February 2015 at 4:10 PM.
Seasonal Highest Humidity: 97% on 16, 17 and 18 December 2018 at 12:23 AM on the 18 December (2% lower than this month in 2017). This is the equal third highest monthly December high humidity and the lowest since 95% in 2016 on 26 December 2016 at 6:35 AM. This previously occurred 14 times. For summer this is the lowest maximum relative humidity on record, exceeding the old record of 98% in 2016-17 on the 28 January 2017 at 6:55 AM. 97% has previously occurred 52 times.
Monthly Highest Humidity (for January): 94% on 4 January 2018 at 6:10 AM (5% lower than this month in 2018). This is the lowest monthly January high humidity exceeding the previous record of 98% in 2017 on 28 January at 5:22 PM. This has previously occurred 15 times.
Monthly Highest Humidity (for February): 96% on 6 February 2019 at 4:49 AM (4% lower than this month in 2018). This is the equal second lowest monthly February high humidity shared with 2017 and the lowest since 95% on 25 February 2012 at 7:20 AM. 96 % has previously occurred 11 times.
Seasonal mean minimum dew point: 15.6 ºC (2.4 ºC below average). This is the lowest seasonal mean minimum dew point on record, exceeding the previous record of 17 C in 2011-12.
Seasonal mean maximum dew point: 20.2 ºC (0.4 ºC below average). This is the second lowest seasonal mean maximum dew point on record with the lowest on record being 18.6 C in 2009-10.
Seasonal mean dew point: 17.9 ºC (1.2 ºC below average). This is the lowest seasonal mean dew point on record, exceeding the previous record of 18.6 C in 2013-14.
Lowest dew point: 8.7 ºC on 28 January 2019 at 11:49 AM. This is the second lowest monthly minimum dew point on record, the lowest since 7.6 ºC in 2011-12 on 11 January 2012 at 10:20 PM, the third lowest daily dew point for January and the lowest since 8.3 ºC in 12 January 2012 at 12:30 AM.
Highest dew point: 24.7 ºC on 13 February 2018 at 2:40 PM. This is the fifth lowest and highest monthly maximum dew point on record, the lowest since 24.2 ºC in 2015 on 22 February at 3:58 PM, equal twelfth highest daily dew point for February and the highest since 24.8 ºC on 24 February 2018 at 11:43 PM.
Maximum Wind Gust: 48 km/hr on 21 December 2018 at 5:45 PM. This is the fourth lowest December maximum wind gust and the lowest since 37.8 km/hr in 2014 on the 3 December at 6:13 PM. The maximum wind gust this month last year was 60 km/hr and this season in 2017-18 was 99.8 km/hr. For summer this is the second lowest maximum seasonal wind gust, the lowest since 46.5 km/hr in 2009-10 on 15 February 2010, the equal thirty-second highest daily wind gust and the highest since 99.8 km/hr on 11 February 2018 at 6:24 PM.
Maximum Monthly Wind Gust (for January): 37 km/hr on 7 January 2019 at 12:45 PM. This is the second lowest January maximum wind gust and the lowest since 33.5 km/hr in 2012 on the 4 January at 5:40 PM. The maximum wind gust this month last year was 55.7 km/hr.
Maximum Monthly Wind Gust (for February): 44 km/hr on 22 February 2019 at 12:43 PM. This is the third lowest February maximum wind gust and the lowest since 32.9 km/hr in 2012 on the 2 February at 7:47 AM. The maximum wind gust this month last year was 99.8 km/hr. This is the twenty-seventh highest daily wind gust on record and the highest since 44.1 km/hr on 21 February 2018 at 8:18 AM.
Maximum Wind Speed: 25 km/hr on 2 December 2018 at 12:19 PM (Moderate Force Wind). This is the lowest monthly maximum wind speed for February on record, exceeding the previous record low of 27.1 km/hr on 31 December 2011 at 8:40 AM. This month in 2017 and this season in 2017-18 was 41.6 km/hr.
Maximum Wind Speed (for February): 22 km/hr on 22 February 2019 at 12:40 PM (Moderate Force Wind). This is the second lowest monthly maximum wind speed for February and the lowest since the current record low of 18.1 km/hr in 2012 on 20 February at 5:35 PM.
Seasonal Wind Run: 11689.8 km. This is the highest on record exceeding the old record in 2015-16 of 5754.3 km. This season last year was 4230.0 km.
Wind Run (for December): 4054 km (2796.7 km more than same month in 2017) and is the highest on record for December on record beating the old record of 1682.6 km in 2012.
Wind Run (for January): 3613.4 km (2228.9 km more than same month in 2018) and is the highest on record for January total wind run exceeding the old record of 2155.7 km in 2013.
Wind Run (for February): 4022.4 km (2434.2 km higher than same month in 2018), 1975.2 km above average and 96.4 % above average. This is the highest on record for February total wind run exceeding the old record of 2338.2 km in 2016.
Seasonal Mean Wind Speed: 3.0 km/hr (3.5 km/hr higher than this season in 2017-18) and the highest on record, with the old record being 2.6 km/hr in 2015-16.
Monthly Mean Wind Speed (for December): 5.5 km/hr (3.8 km higher than this month last year). This is the highest on record for December exceeding the old record of 2.3 km/hr in 2012 and 2015.
Monthly Mean Wind Speed (for January): 4.9 km/hr (3.0 km higher than this month last year). This is the highest on record for January exceeding the old record of 3 km/hr in 2013.
Monthly Mean Wind Speed (for February): 6.0 km/hr (3.6 km higher than this month in 2018), 3.1 km/hr above average and 51.6 % above average. This is the highest on record for February exceeding the old record of 3.4 km/hr in 2016.
Daily Mean Maximum Wind Gust: 28.4 km/hr (6.1 km lower than this season in 2017-18), 2.8 km/hr below average and 5.6 % below average. This is the fourth lowest daily mean maximum wind gust on record and the lowest since 23.7 km/hr in 2011-12.
Daily Mean Maximum Wind Speed: 14.3 km/hr, 4.7 km/hr lower than this month last year and 4.3 km/hr below average. This is the second lowest daily mean maximum wind speed on record and the lowest since the current record low of 13.2 km/hr in 2011-12.
Dominant Direction: ESE (SSW this season in 2017-18).
Seasonal Rainfall Total: 131.1 mm (318.5 mm below average and 29.4 % of the long term average), this season last year was 456.6 mm. This is the second lowest summer rainfall on record, the lowest since 113.5 mm in 1996-97 and ranks as decile 1 /3rd percentile and as very low. Rainfall totals during summer were below average at all of the official sites. The lowest rainfall total was 47.2 mm at Gatton and also observed the lowest fraction of the long term average at 15%. The highest total of the main official sites was 193.8 mm at Cape Moreton Lighthouse (46% of the long term and the highest of the main official sites). Many sites observed record low rainfall totals for summer including the official sites at Amberley, Beerburrum, Brisbane Aero, Logan City Treatment Plant and Gatton as well as other coastal and inland sites. Alderley, Somerset Dam, Esk Post Office, Archerfield Airport and Lindfield observed summer rainfall totals that were the lowest in at least 20 years. The remaining main official sites in the Brisbane observed rainfall totals that ranked as very low or low. Brisbane measured a total for summer of 116.8 mm (28 % of the long term average and ranked as low). The highest rainfall total of all the official sites was 322 mm at Peachester.
Number of Rain Days: 35 days, 7 less than last year and 2.3 days below average. This is the lowest since 32 days in 2015-16 and the thirteenth lowest on record.
Number of Rain Days (December): Number of Rain Days: 13 days, 3 lower than this month last year and 2.8 days above average. This is the equal tenth lowest on record and lowest since 10 days in 2013.
Highest Daily Total: 36 mm on 17 December 2018. This is the highest for December since 64.5 mm on the 12 December 2010, the fifteenth highest December daily rainfall total on record, the highest daily rainfall total for December since 49.5 mm on 27 December 2010 and the twenty-first highest December daily rainfall total. Seasonally this is the fourth lowest on record, the lowest since 24.6 mm in 2013-14 on 24 January 2014 and the eighth highest daily rainfall for summer. The highest daily total of the official sites in the Brisbane area was 118.6 mm at Rosevale on 15 December 2018.
Highest Daily Total for January – New monthly record: 4.4 mm on 4 January 2019. This is the lowest January highest daily rainfall on record exceeding the old record low of 8 mm in 2003 on 5 January. The highest daily total in the Brisbane area of all official sites was 54.8 mm at Regents Park on the 4 January 2019.
Wettest Month (December): 80.1 mm (63.4 mm below average) and 55.8 % of the long term average. This total is in decile 4/ 35th percentile which ranks as average and 8.4 mm below the long term median (88.3 % of long term median). This is lower than the previous year which was 88.9 mm, the lowest since 65.5 mm in 2016 and is the tenth lowest on record.
Most of the official sites measured below average rainfall totals for December, whilst some sites reported close to average or above average rainfall. The sites recording below average rainfall recorded totals ranking historically mostly as low and ranged between 26% of the long term average for Brisbane Aero with a total of 31.6 mm and 64% of the long term average for Logan City Treatment Plant with a total of 78.2 mm and 64 % of the long term average. Beaudesert recorded 50 % of the long term average with a total of 57.8 mm and ranked as very low while Brisbane Aero ranked historically as lowest. The lowest total for the main official sites was 19 mm at Redland (Alexandra Hills), while the highest total was 159.4 mm at Cape Moreton Lighthouse which was 127% of the long term average which ranked as high. The site at Brisbane recorded 51.2 mm which ranked as low and was 41% of the long term average. Brisbane Aero recorded the lowest total on record exceeding the old record of 32.8 mm in 2013 and Coomera Foxwell Road also observed record low rainfall of 37 mm with the old record being 63 mm in 2015.
Driest Month (January): 11.2 mm (133.1 mm below average) and 7.8 % of the long term average. This total is in decile 1/ 3rd percentile which ranks as lowest on record and 112.8 mm below the long term median (8.9 % of long term median). This is lower than this month last year which was 62.4 mm, and is the lowest on record. The old record was 16.5 mm in 2003.
All the official stations in the Brisbane area measured below average rainfall totals. These ranged between 1 and 29 % of the long term average and ranked as lowest on record, very low or low. Most sites ranked as very low of between 1 and 19 % of the long term average. 2 sites measured totals ranking historically as low being 20 and 29 % of the long term average. The highest rainfall total of the official main sites was 39.2 mm at Point Lookout which was 29 % of the long term average and ranked as low. Of all the official sites the highest total was 58.2 mm at Regents Park. The lowest rainfall total was 1.2 mm at Gatton and 1 % of the long term average. Beerburrum with a total of 6.6 mm (3% of the long term average), Brisbane Aero with a total of 2.8 mm (2% of the long term average) and Gatton with a total of 1.2 mm (1% of the long term average) ranked as lowest on record. Also other sites recorded new record low monthly totals at Harrisville Mary Street, Gatton Allan Street, Toogoolawah Post Office, Peachester, Lindfield, Somerset Dam, Mt Alford, Carneys Creek The Ranch, Corbould Pk Racecourse and Woodford Stanmore. The site at Brisbane recorded 27.6 mm which ranked as low and was 20% of the long term average.
February Monthly Rainfall: 39.5 mm (122.3 mm below average) and 24.4 % of the long term average. This total is in decile 2/ 16th percentile which ranks as very low and 96.5 mm below the long term median (27.3 % of long term median). This is lower than this month last year which was 305.3 mm, the fifth lowest on record and the lowest since 32.5 mm in 2017. The record low is 0 mm in 1997.
All of the main official sites in the Brisbane area measured below average rainfall totals for February and well below average at many sites. These ranged between 10 and 71 % of the long term average. Most sites ranked as low or very low historically with three sites ranking as average. These three sites were Brisbane Aero (62.8 mm and 52 % of the long term average), Point Lookout (103.3 mm, 71% of the long term average and the highest rainfall total in the Brisbane area) and Redcliffe (63.8 mm, 53 % of the long term average). The sites ranking as low measured totals of between 17.6 mm at Beaudesert (16% of the long term average) and 50.6 mm at Logan City Treatment Plant (33% of the long term average). The remaining sites that ranked as very low measured totals of between 10 mm at Gatton (10% of the long term average) and 34.4 mm at Archerfield (23% of the long term average). Brisbane observed a rainfall total of 38 mm (27 % of the long term average) and ranked as low. The lowest rainfall total of the official sites in the Brisbane area was 1 mm at Sim Jue Creek which was a new record low for this site (old record of 10.2 mm in 2014 of 80 years of record). Carneys Creek The Ranch and Mt Tarampa also saw record low February rainfall totals while Harrisville Mary Street recorded a total of 8.8 mm which is the lowest rainfall total since the current record of 7.2 mm in 1936.
Seasonal Rainfall Total – (automatic gauge) 24 hours to 9am: 107mm (4.1 mm less than official standard gauge and within 22.5%). Highest daily total (automatic gauge, 24 hours to 9am): 27.2 mm on the 17 December 2018, 24 hours from midnight: 36.6 mm on 16 December 2018.
Note: This automatic gauge for the season, didn’t meet the expected accuracy (of +/- 10% of the standard gauge) of -22.5%. Note: Little rainfall fell over much of the season and many daily totals were of low rainfall amounts, which influenced the accuracy of this data.
There was 0 days with falls of at least 25 mm (3 less than same month in 2018) with 7 days of less than 1mm (5 greater than same month in 2018).
Highest rainfall rate was 104.8 mm/hr on the 6 February 2019 at 11:48 PM (this is the fourth highest monthly rainfall rate for February, the highest since the record high of 273.4 mm/hr in 2018 on the 26th at 8:35 PM, the fifth highest daily rainfall rate for February and the highest since the aforementioned 273.4 mm/hr). For summer this is the lowest seasonal maximum rain rate since 105.5 mm/hr in 2014-15, the fourth lowest on record, the eighth highest daily rain rate for summer and the highest since 105.4 mm/hr on 23 February 2018 at 8:38 PM.
Highest hourly rainfall was 8.2 mm on the 16 December 2018 at 5:05 AM. This is the second lowest monthly maximum hourly rainfall for December, the lowest since the current record low of 6.2 mm in 2013 at 4:13 PM on the 5th, twelfth highest daily maximum hourly rainfall and the highest since 20.7 mm on 31 December 2018 at 3:09 PM. For summer this is the lowest seasonal maximum hourly rainfall exceeding the previous record low of 13.5 mm in 2012-13 on 26th December 2012 at 6:35 AM, twenty-eighth highest daily maximum hourly rainfall and the highest since 44 mm on 26 February 2018.
Rainfall in December was below average with a total of 80.1 mm and 55.8 % of the long term average which ranked as average. Rainfall fell over 13 days which is 2.8 days above average. Most of the official sites measured below average rainfall totals for December, whilst some sites reported close to average or above average rainfall. Widespread showers occurred at the start of the month with light to moderate falls on the 5th in Brisbane and between the 5th and 10th over northern parts of the Greater Brisbane area. Between the 15th and 17th the remnants of ex-tropical cyclone Owen brought moderate to locally heavy falls. In the last week of the month little rainfall was reported in the Greater Brisbane area. Brisbane Aero recorded the lowest total on record exceeding the old record of 32.8 mm in 2013 and Coomera Foxwell Road also observed record low rainfall of 37 mm with the old record being 63 mm in 2015.
During December rainfall was produced by light showers with some moderate to heavy falls in the first half of the month. Afternoon mild thunderstorms and showers with little rain were measured in the last week of the month. Late afternoon light showers followed by frequent, brief light to moderate showers with brief heavy falls on the 4th, with 4.8 mm measured on the 5th. On the 17th was frequent light to moderate, briefly heavy showers in the early hours, less frequent in the morning, with light to moderate falls. Showers were more frequent in the afternoon, easing later in the evening. On the 18th were light showers from early hours to early morning with 36 mm on the 17th.
In January rainfall was well below average with a total of 11.2 mm which was 7.8 % of the long term average and ranked as lowest on record. Rainfall was recorded over 9 days which was 1 day below average. All the official stations in the Brisbane area measured below average rainfall totals. These ranged between 1 and 29 % of the long term average and ranked as lowest on record, very low or low. In the Brisbane area most rainfall occurred in the first 10 days of the months. Some sites observed light falls at the end of the month from isolated showers. Rainfall at Ferny Grove consisted of light showers with low daily rainfall totals mostly in the first 10 days of the month. On the 4th there were some moderate falls. There were some showers on the 28th and 29th however.
During February 39.5 mm of rainfall was measured which was 24.4% of the long term average and ranked as very low. Rainfall was recorded during 13 days which was 1.5 days above average. All of the main official sites in the Brisbane area measured below average rainfall totals for February and well below average at many sites. These ranged between 10 and 71 % of the long term average. In the Brisbane area most rainfall occurred in the first half of the month from showers as a result of onshore wind flow.
Rainfall at Ferny Grove in February consisted of mostly light showers with low daily rainfall totals. Most rainfall occurred mostly in the first 10 days of the month. Showers in the early hours brought briefly heavy falls on the 2nd. On the 6th there were light to moderate frequent showers early in the day and in the morning.
Number of severe thunderstorms: 2
Number of thunderstorms: 5 (Mild: 3, Moderate: 0)
Number of thunder days: 3 days
Number of nearby only storms: 3
Severe thunderstorms in the Brisbane area:
December:
January
February
NOTE: These records are from the official station record of this site. See end notes for more information.
Record high February mean minimum temperature in at least 5 years |
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Observed [C] |
Most recent higher |
Years of record |
Monthly average |
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20.9 |
21.4 in 2010 |
9 |
20.8 |
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Record high December minimum temperature in at least 5 years |
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Observed [C] |
Most recent higher |
Years of record |
Monthly average |
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14.9 on 26th at 4:56 AM |
16.6 on 3rd in 2009 |
9 |
19 |
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Record high summer minimum temperature in at least 5 years |
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Observed [C] |
Most recent higher |
Years of record |
Seasonal average |
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14.9 on 26th at 4:56 AM |
16.6 in 3 December 2009 |
9 |
20 |
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Record high January minimum temperature in at least 5 years |
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Observed [C] |
Most recent higher |
Years of record |
Monthly average |
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18.5 on 18th at 5:11 AM |
18.3 on 23rd in 2018 at 5:06AM |
9 |
20.8 |
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Record high January minimum temperature in at least 5 years |
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Observed [C] |
Most recent higher |
Years of record |
Monthly average |
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18.5 on 18th at 5:11 AM |
18.3 on 23rd in 2018 at 5:06AM |
9 |
20.8 |
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Record high December maximum temperature |
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Observed [C] |
Old record |
Years of record |
Monthly average |
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39.8 on 21st at 2:47 PM |
38.5 on 4th in 2012 at 3:10 PM |
9 |
29.9 |
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Record low December lowest maximum temperature in at least 5 years |
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Observed [C] |
Most recent lower |
Years of record |
Monthly average |
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23.9 on 3rd at 2:00 AM |
23.4 on 7th in 2011 at 3:28 PM |
9 |
29.9 |
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Record high summer mean minimum MSL pressure in at least 5 years |
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Observed [hPa] |
Most recent higher |
Years of record |
Seasonal average |
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1011.4 |
1016.4 in 2010 |
9 |
1011.2 |
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Record high January mean minimum MSL pressure in at least 5 years |
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Observed [hPa] |
Most recent higher |
Years of record |
Monthly average |
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1013 |
1015.4 in 2010 |
9 |
1010.4 |
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Record high summer mean maximium MSL pressure in at least 5 years |
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Observed [hPa] |
Most recent higher |
Years of record |
Seasonal average |
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1015.8 |
1018.1 in 2009-10 |
9 |
1015 |
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Record high January mean maximum MSL pressure in at least 5 years |
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Observed [hPa] |
Most recent higher |
Years of record |
Monthly average |
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1016.8 |
1016.9 in 2010 |
9 |
1014 |
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Record high summer mean MSL pressure in at least 5 years |
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Observed [hPa] |
Most recent higher |
Years of record |
Seasonal average |
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1013.6 |
1017.2 in 2009-10 |
9 |
1013.1 |
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Record high January mean MSL pressure in at least 5 years |
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Observed [hPa] |
Most recent higher |
Years of record |
Monthly average |
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1014.9 |
1016.1 in 2010 |
9 |
1012.2 |
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Record low December air pressure in at least 5 years |
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Observed [hPa] |
Most recent lower |
Years of record |
Monthly average |
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1000.4 on 2nd at 3:58 PM |
999.3 on 5th in 2013 at 3:40 PM |
9 |
1013.3 |
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Record low summer air pressure in at least 5 years |
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Observed [hPa] |
Most recent lower |
Years of record |
Seasonal average |
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1000.4 on 2nd at 3:58 PM |
1000 on 14th February 2017 at 12:20 AM |
9 |
1011.2 |
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Record high January minimum MSL pressure |
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Observed [hPa] |
Old record |
Years of record |
Monthly average |
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1010.1 on 23rd at 4:44 PM |
1006 on 18th in 2010 |
9 |
1010.4 |
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Record low summer mean minimum relative humidity |
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Observed [%] |
Old record |
Years of record |
Seasonal average |
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44.1 |
45.6 in 2009-10 |
8 |
54.6 |
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Record low December mean minimum relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
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46 |
38.7 in 2009 |
9 |
53.2 |
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Record low January mean minimum relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
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42.5 |
40.5 in 2010 |
9 |
55.5 |
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Record low February mean minimum relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
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43.8 |
50 in 2016 |
9 |
57.3 |
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Record low summer mean maximum relative humidity |
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Observed [%] |
Old record |
Years of record |
Seasonal average |
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84.8 |
88.2 in 2010 |
9 |
92.6 |
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Record low December mean maximum relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
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87.8 |
86 in 2009 |
9 |
92.3 |
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Record low January mean maximum relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
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85.7 |
82.9 in 2010 |
9 |
91.5 |
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Record low February mean maximum relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
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81 |
86.9 in 2012 |
9 |
3 |
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Record low summer mean relative humidity |
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Observed [%] |
Old record |
Years of record |
Seasonal average |
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64.4 |
66.9 in 2009-10 |
9 |
73.5 |
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Record low December mean relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
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66.9 |
62.3 in 2009 |
9 |
72.8 |
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Record low January mean relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
||||||
66.9 |
61.7 in 2010 |
9 |
73.5 |
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Record low February mean relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly average |
||||||
62.4 |
66.9 in 2017 |
9 |
73.5 |
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Record low December and summer relative humidity in at least 5 years |
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Observed [%] |
Most recent lower |
Years of record |
Monthly/seasonal average |
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13 on 1st at 12:23 PM |
10 on 5th December 2012 at 5:15 PM |
9 |
53.2/ 54.6 |
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Record low February minimum humidity |
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Observed [%] |
Old record |
Years of record |
Monthly average |
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28 on 23rd at 3:17 PM |
30 on 1st in 2015 at 4:10 PM |
9 |
57.3 |
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Record low summer maximum relative humidity |
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Observed [%] |
Old record |
Years of record |
Seasonal average |
||||||
97 on 18th December 2018 at 12:23 AM |
98 on 28th January 2017 at 6: 55 AM |
9 |
92.4 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low January maxmum relative humidity |
|||||||||
Observed [%] |
Old record |
Years of record |
Monthly average |
||||||
94 on 4th at 6:10 AM |
98 on 28th in 2017 at 5:22 PM |
9 |
91.5 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low February maximum humidity in at least 5 years |
|||||||||
Observed [%] |
Most recent lower |
Years of record |
Monthly average |
||||||
96 on 6th at 4:49 AM |
95 in 2012 on 25th at 7:20 AM |
9 |
93 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low summer mean minimum dew point |
|||||||||
Observed [C] |
Old record |
Years of record |
Seasonal average |
||||||
15.6 |
17 in 2011-12 |
9 |
18.1 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low February mean minimum dew point |
|||||||||
Observed [C] |
Old record |
Years of record |
Monthly average |
||||||
15.3 |
17.2 in 2013 |
9 |
18.6 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low summer mean maximum dew point |
|||||||||
Observed [C] |
Old record |
Years of record |
Seasonal average |
||||||
20.2 |
18.6 in 2009-10 |
9 |
20.8 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low February mean maximum dew point |
|||||||||
Observed [C] |
Old record |
Years of record |
Monthly average |
||||||
20.1 |
20.7 in 2014 |
9 |
21.5 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low summer mean dew point |
|||||||||
Observed [C] |
Old record |
Years of record |
Seasonal average |
||||||
17.9 |
18.6 in 2013-14 |
9 |
19.4 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low January maximum wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
37 on 7th at 12:45 PM |
33.5 on 4th in 2012 at 5:40 PM |
8 |
20.9 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low February max wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
44 on 22nd at 12:43 PM |
32.9 in 2012 on 2nd at 7:47 AM |
9 |
31.3 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low summer maximum wind speed |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Seasonal average |
||||||
25 on 2nd December 2018 at 12:19 PM |
27.1 on 31 December 2011 at 8:40 AM |
9 |
41.8 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low February max wind speed in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
22 on 22nd at 12:40 PM |
18.1 in 2012 on 20th at 5:35 PM |
9 |
18 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record high summer wind run |
|||||||||
Observed [km] |
Old record |
Years of record |
Seasonal average |
||||||
11689.8 |
5754.3 in 2015-16 |
7 |
5014.2 |
||||||
|
|
|
|
|
|
|
|
|
|
Record high December wind run |
|||||||||
Observed [km] |
Old record |
Years of record |
Monthly average |
||||||
4054 |
1682.6 in 2012 |
7 |
1582.2 |
||||||
|
|
|
|
|
|
|
|
|
|
Record high January wind run |
|||||||||
Observed [km] |
Old record |
Years of record |
Monthly average |
||||||
3613.4 |
2155.7 |
8 |
Not available |
||||||
|
|
|
|
|
|
|
|
|
|
Record high February total wind run |
|||||||||
Observed [km] |
Old record |
Years of record |
Monthly average |
||||||
4022.4 |
2338.2 in 2016 |
9 |
2047.4 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record high summer mean daily wind speed |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Seasonal average |
||||||
3 |
2.6 in 2015-16 |
7 |
2.5 |
||||||
|
|
|
|
|
|
|
|
|
|
Record high December mean wind speed |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Monthly average |
||||||
5.5 |
2.3 in 2015 |
7 |
1.9 |
||||||
|
|
|
|
|
|
|
|
|
|
Record high January mean wind speed |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Monthly average |
||||||
4.9 |
3 in 2013 |
8 |
2.8 |
||||||
|
|
|
|
|
|
|
|
|
|
Record high February mean wind speed |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Monthly average |
||||||
6 |
3.4 in 2016 |
8 |
2.9 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low summer daily mean maximum wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Seasonal average |
||||||
28.4 |
23.7 in 2011-12 |
8 |
31.2 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low summer daily mean maximum wind speed in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Seasonal average |
||||||
14.3 |
13.2 in 2011-12 |
9 |
18 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low February daily mean maximum wind speed in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
14.6 |
10.1 in 2012 |
9 |
18 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low summer total rainfall in at least 5 years |
|||||||||
Observed [mm] |
Most recent lower |
Years of record |
Seasonal average |
||||||
131.1 mm |
113.5 in 1996-97 |
31 |
436 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low January total rainfall |
|||||||||
Observed [mm] |
Old record |
Years of record |
Monthly average |
||||||
11.2 |
16.5 in 2003 |
32 |
144.3 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record high December highest daily rainfall in at least 5 years |
|||||||||
Observed [mm] |
Most recent higher |
Years of record |
Monthly average |
||||||
36 on 17th |
64.5 on 12th in 2010 |
31 |
42.3 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low January highest daily rainfall total |
|||||||||
Observed [mm] |
Old record |
Years of record |
Monthly average |
||||||
4.4 on 4th |
8 on 5th in 2003 |
32 |
51.4 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low December number of rain days in at least 5 years |
|||||||||
Observed [days] |
Most recent lower |
Years of record |
Monthly average |
||||||
13 |
10 in 2013 |
31 |
10.2 |
||||||
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Record low summer maximum hourly rainfall in at least 5 years |
|||||||||
Observed [mm] |
Most recent lower |
Years of record |
Seasonal average |
||||||
8.2 on 16th at 5:05 AM |
13.5 on 26th December 2012 at 6:35 AM |
31 |
31.7 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low December hourly rainfall in at least 5 years |
|||||||||
Observed [mm] |
Most recent lower |
Years of record |
Monthly average |
||||||
8.2 on 16th at 5:05 AM |
6.2 in 2013 on 5th at 4:13 PM |
31 |
42.3 |
||||||
|
|
|
|
|
|
|
|
|
|
NOTE: These records are from automatic data record made since October 2011. See end notes for more information.
All time records |
No records |
Monthly records |
December |
Highest Temperature 39.8 °C at 3:00 PM on 21 December 2018 |
Lowest Temperature 14.9 °C at 5:05 AM on 26 December 2018 |
Lowest Wind Chill Temperature 14.9 °C at 5:05 AM on 26 December 2018 |
Highest Daily Range 18.1 °C on 02 December 2018 |
Lowest Daily Range 2.0 °C on 16 December 2018 |
Longest Wet Period 5 days to 18 December 2018 |
Highest Daily Wind Run 228.1 km on 06 December 2018 |
January |
No records |
February |
Minimum Dew Point Temperature 9.2 °C on 23 Feb 2019 at 3:53 pm |
Minimum Relative Humidity 28 % on 23 Feb 2019 at 3:17 pm |
Longest Dry Period 13 days on 22 Feb 2019 |
Wind Run 288.9 km/h on 22 Feb 2019 |
Summary of Averages and Extremes for summer 2018-19 for Ferny Grove, Brisbane, Queensland, Australia |
||||||||||||||||
|
Min Temp |
Max Temp |
Mean Temp |
Temp Range |
Min Grass Temp |
Min Grass Temp Depression |
Min Relative Humidity |
Max Relative Humidity |
Mean Relative Humidity |
Min MSL pressure |
Max MSL Pressure |
Mean MSL Pressure |
Dew Point |
Max Wind Gust |
Max Wind Speed |
Daily rain |
December |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
19.5 |
30.4 |
24.9 |
10.9 |
17.8 |
1.6 |
46.0 |
87.8 |
67.0 |
1011.1 |
1016.1 |
1013.6 |
17.7 |
28.7 |
14.7 |
2.6 |
Min |
14.9 |
23.9 |
21.2 |
1.1 |
13.0 |
2.5 |
13.0 |
73.0 |
52.5 |
1000.4 |
1008.6 |
1005.1 |
15.3 |
19.0 |
9.0 |
|
Max |
23.3 |
39.8 |
31.2 |
17.9 |
21.9 |
0.5 |
90.0 |
97.0 |
93.5 |
1019.4 |
1021.8 |
1020.6 |
20.0 |
48.0 |
25.0 |
36.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
80.1 |
January |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
20.8 |
32.0 |
26.4 |
11.1 |
19.0 |
1.9 |
42.5 |
85.7 |
64.1 |
1013.0 |
1016.8 |
1014.9 |
18.3 |
26.7 |
13.6 |
0.9 |
Min |
18.5 |
28.9 |
24.6 |
7.0 |
16.7 |
2.6 |
32.0 |
77.0 |
58.5 |
1010.1 |
1014.4 |
1012.7 |
8.7 |
19.0 |
10.0 |
|
Max |
22.9 |
34.3 |
28.1 |
15.1 |
21.3 |
0.8 |
58.0 |
94.0 |
73.5 |
1015.8 |
1019.5 |
1017.6 |
21.9 |
37.0 |
19.0 |
4.4 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
11.2 |
February |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
20.9 |
31.2 |
26.0 |
10.3 |
19.1 |
1.7 |
43.8 |
81.0 |
62.4 |
1010.1 |
1014.7 |
1012.4 |
17.7 |
29.9 |
14.6 |
1.4 |
Min |
16.8 |
25.6 |
22.6 |
5.9 |
14.8 |
2.8 |
28.0 |
50.0 |
39.0 |
1001.3 |
1006.3 |
1003.8 |
9.2 |
22.0 |
10.0 |
|
Max |
25.0 |
36.7 |
29.3 |
16.1 |
22.6 |
0.1 |
79.0 |
96.0 |
73.5 |
1020.1 |
1023.5 |
1021.8 |
24.7 |
44.0 |
22.0 |
20.2 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
39.8 |
Season |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
20.4 |
31.2 |
25.8 |
10.8 |
18.6 |
1.7 |
44.1 |
84.8 |
64.5 |
1011.4 |
1015.8 |
1013.6 |
17.9 |
28.4 |
14.3 |
1.7 |
Min |
14.9 |
23.9 |
21.2 |
1.1 |
13.0 |
2.8 |
13.0 |
50.0 |
39.0 |
1000.4 |
1006.3 |
1003.8 |
8.7 |
19.0 |
9.0 |
|
Max |
25.0 |
39.8 |
31.2 |
17.9 |
22.6 |
0.1 |
90.0 |
97.0 |
93.5 |
1020.1 |
1023.5 |
1021.8 |
24.7 |
48.0 |
25.0 |
36.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
131.1 |
Summary for summer 2018-19 from long term average for Ferny Grove, Brisbane, Queensland, Australia |
||||||||
|
Temperature |
Relative Humidity |
MSL Pressure |
Dew Point |
Wind Gust |
Wind Speed |
Rainfall |
Rainfall as Fraction of monthly average (%) |
December |
|
|
|
|
|
|
|
|
Average |
+0.5 |
-5.8 |
+0.3 |
-7.8 |
-2.4 |
0.0 |
-63.4 |
55.8 |
Min |
+0.5 |
-7.1 |
|
-1.6 |
|
|
|
- |
Max |
+0.5 |
-4.6 |
|
-2.5 |
|
|
+37.8 |
- |
January |
|
|
|
|
|
|
|
|
Average |
+0.6 |
-9.5 |
+2.7 |
-1.6 |
-4.3 |
-7.3 |
-133.1 |
7.8 |
Min |
-0.0 |
-13.1 |
|
-2.5 |
|
|
|
|
Max |
+1.2 |
-5.9 |
|
-0.8 |
|
|
-40.2 |
|
February |
|
|
|
|
|
|
|
|
Average |
+0.9 |
-12.7 |
-1.6 |
-2.3 |
-1.8 |
-5.5 |
-122.0 |
24.6 |
Min |
+0.7 |
-13.5 |
|
-3.1 |
|
|
|
|
Max |
+1.1 |
-12.0 |
|
-1.5 |
|
|
-23.1 |
|
Season |
|
|
|
|
|
|
|
|
Average |
0.7 |
-9.3 |
0.5 |
-3.9 |
-2.8 |
-4.3 |
-318.5 |
29.4 |
Min |
0.4 |
-11.2 |
- |
-2.4 |
- |
- |
- |
- |
Max |
0.9 |
-7.5 |
- |
-1.6 |
- |
- |
- |
- |
Monthly averages and extremes for summer 2018-19 to Date for Ferny Grove, Brisbane, Queensland, Australia |
|||||||||||
|
Temperature |
Temperature from Long Term Avg. |
Rain total |
Rain Anomaly |
Rain days |
||||||
|
Avg Min |
Avg Max |
Low Min |
High Max |
Average |
Min |
Max |
Average |
|
|
|
Dec-18 |
19.5 |
30.4 |
14.9 |
39.8 |
24.9 |
+0.5 |
+0.5 |
+0.5 |
80.1 |
-63.4 |
13 |
Jan-19 |
20.8 |
32.0 |
18.5 |
34.3 |
26.4 |
-0.0 |
+1.2 |
+0.6 |
10.4 |
-134.6 |
9 |
Feb-19 |
20.9 |
31.2 |
16.8 |
36.7 |
26.0 |
+0.7 |
+1.1 |
+0.9 |
39.8 |
-122.0 |
13 |
Season |
20.4 |
31.2 |
7.2 |
37.2 |
25.8 |
+0.4 |
+0.9 |
+0.7 |
130.3 |
-106.7 |
35 |
Notes:
Based on Bureau of Meteorology climate summaries (Copyright) of which some data was obtained from. From September 2017 the Bureau of Meteorology climate summaries were expanded to provide data from official stations in and near the Greater Brisbane “Greater Capital City Statistical Area” (GCCSA).
Data copyright Ferny Grove Weather 2019, Produced 16/8/2019 based on data at this time. Data checking has been carried out but errors may still be present and therefore there is no assurance of correctness. Corrections may be made at a later data if errors or deficiencies are found and/or improvements in data handling techniques are made, though data with major improvements may not be updated in this summary. Data measured with professional moderate accuracy equipment except for daily rainfall and grass minimum temperature which is measured using non-professional equipment with moderate accuracy. This replaced non professional equipment of low accuracy with differences in the measured data. When only year of a previous season which span over two calendar years is mentioned, this refers to the second year of this period. For example if 2017 specified it is the season of 2016-2017.
Site commencement data is April 15 2009 except for daily rainfall which commenced on January 1 1987. Not all variables have been measured over the entire station record. Most variables are measured over a 24 hour period ending in the evening and over a 24 hour period from midnight effective October 5 2018. Maximum temperatures are measured over the 24 hours from 9 am on the day of measurement. Minimum temperatures are measured over the 24 hours to 9 am of the day of measurement. Rainfall is measured over 24 hours to 9am and recorded on that day. This is the same as the official time standard and measured in millimetres. Some rainfall measurements are not made at 9am and is adjusted based on the automatic record. Minimum Grass Temperature is measured over an approx. 12 hour period ending in the early morning. MSL refers to Mean Sea Level, which is the standard meteorological method of measuring air pressure reduced to sea level based on both elevation and temperature. Grass Minimum Depression is the difference of the grass minimum temperature from the air temperatures and is usually a positive value when the grass temperature is below the air temperature.
Automatic records in “Other Records” and listed elsewhere under Dew Point, Average Wind Speed, Dominant Wind Direction, Wind Run, Rain Rate and Hourly Rain are measured over a 24 hour period starting at midnight and recorded for that day. This started on the 6 October 2011. The automatic record is used for some data and also may be used if data is not available/ not suitable. Until replaced from 5 October 2018 temperature and humidity sensor is under exposed so minimum temperature and maximum humidity are incorrect and low accuracy rain gauge is used which are not used as the site’s official record. This data limitation does not apply to other measurements of temperatures, air pressure and humidity, wind gust, daily and monthly rainfall and rain days elsewhere in this summary which are recorded separately and form the official record for this site. The replacement equipment is sited in more exposed locations and therefore the limitations don’t apply, though the automatic daily rainfall doesn’t form the official data for the site. However the automatic record for some data may be used if data is not available/ not suitable.
Long term averages are based on all available long period past measurements. Long term average for Temperature, Relative Humidity and Air pressure is based on 2009 to 2015 average from the station record and wind speed is based on the 2010 to 2019 average from station record. Long term average for rainfall is based on 1987 to 2017 average from the station record.
The Fraction of monthly average expresses how much has fallen in respect to the long term average listed as a percentage. The decile ranking compares the rainfall total to the historical record for the site where the record is divided into 10 equal groups. Decile 1 is the lowest 10% of the record (10th percentile) and Decile 10 (90th percentile) is the highest 10% of the record. Decile 1 is considered “very low”, decile 2 and 3 “low”, decile 4 to 7 “average”, decile 8 and 9 “high” and decile 10 “very high”.