Overnight temperatures at Ferny Grove in spring were close to average but was the highest in 11 years. Daytime temperatures were above average. Most of the official sites observed above average overnight temperatures and close to average at the inland sites, whilst the daytime temperatures near average or above average. Rainfall at Ferny Grove was near average and was below average or near average at the official sites. Rainfall in November at Ferny Grove however was the lowest on record. In spring at Ferny Grove air pressure was above average, mean minimum humidity and mean humidity was close to average, mean maximum humidity was above average, mean minimum dew point and mean dew point was near average, mean maximum dew point was above average, wind speed was above average with 6 thunderstorms (10 thunder days).
Seasonal Mean Daily Minimum Temperature: 15.1 ºC, 0.4 ºC above average and 0.3 ºC higher than the same season in 2019. This is the third highest seasonal mean minimum temperature on record for spring and the highest since the current record high of 15.6 ºC in 2010. Mean minimum temperatures in spring at most of the official sites in the Brisbane area were above average and close to average at the inland sites. The coastal sites observed mean minimum temperatures that were mostly up to 0.8 ºC above average that ranged from 0.5 ºC above average at Redcliffe with a mean minimum temperature of 17.5 ºC and Brisbane Aero (16.2 ºC) and 1.3 ºC above average at Cape Moreton Lighthouse (19.1 ºC). The temperature at Cape Moreton Lighthouse was the highest mean minimum temperature of all the official sites. The lowest mean minimum temperature was 12.9 ºC at Amberley (0.1 ºC below average). The other inland sites observed mean minimum temperatures that were 0.1 ºC below average or 0.1 ºC above average. Brisbane observed a mean minimum temperature of 17 ºC (0.7 ºC below average).
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Lowest Monthly Mean Daily Minimum Temperature (September): 13.3 ºC, 1.3 ºC above average and 1.2 ºC higher than same month in 2019. This is the second highest on record for September and the highest since the current record high of 14.1 ºC in 2010. The mean minimum temperatures in the Brisbane area were above average at all the official sites and at least 1 ºC above average at many of these sites. Many of the sites were between 1 ºC and 1.4 ºC above average that were observed at coastal and inland sites. Three sites measured anomalies that were less than 1 ºC above average, namely at Amberley (0.8 ºC above average) with a mean minimum temperature of 10.3 ºC, Beerburrum at 0.6 ºC above average and a mean minimum temperature of 12.6 ºC and Redcliffe was 0.9 ºC above average with a mean minimum temperature of 15.4 ºC. The highest mean minimum temperature was 17.8 ºC at Cape Moreton Lighthouse which also observed the highest anomaly from the long term average of 1.8 ºC above average. The lowest mean minimum temperature was 9.6 ºC at Canungra. Brisbane observed a mean minimum temperature of 14.9 ºC (1.1 ºC above average).
Highest Monthly Mean Daily Minimum Temperature (November): 17 ºC, 0.5 ºC below average and 0.6 ºC lower than same month in 2019. This is the fourth lowest on record for November and the lowest since 15.8 ºC in 2017. Mean minimum temperatures in the Brisbane area were generally close to average and were below average at many of the inland sites. The exception to this was Cape Moreton Lighthouse at 0.7 ºC above average with a mean minimum temperature of 20.3 ºC which observed the highest mean minimum temperature. The sites measuring close to average mean minimum temperatures were mostly the coastal sites that ranged between 0.3 ºC below average at Beerburrum, with a mean minimum temperature of 16.2 ºC and 0.4 ºC above average at Logan City Treatment Plant (17.9 ºC). One of the sites measuring near average mean minimum temperature as an inland site, namely Archerfield which was 0.3 ºC above average (17.5 ºC). The greatest negative anomalies from the long-term average at the inland sites were 1 ºC below average at Amberley (15.3 ºC) and Beaudesert (15.2 ºC) which observed the lowest mean minimum temperature and 0.6 ºC below average at Gatton (15.4 ºC). Brisbane observed a mean minimum temperature of 19 ºC, 0.2 ºC above average.
Monthly Mean Minimum Daily Temperature for October: 15 ºC, 0.4 ºC above average and 0.4 ºC higher than same month in 2019. This is the fourth highest on record for October and the highest since 15.4 ºC in 2018. Mean minimum temperatures across the Brisbane area were close to average at many locations and above average at some coastal sites. The sites measuring mean minimum temperatures that were close to average were between 0.3 ºC below average at both Amberley with a mean minimum temperature of 13 ºC and Beerburrum (14.3 ºC) and 0.4 ºC above average at Archerfield (14.8 ºC). The lowest mean minimum temperature was observed at Canungra with a mean minimum temperature of 11.2 ºC. Five sites observed above average mean minimum temperatures of 0.6 ºC above average at Brisbane (17 ºC), Brisbane Aero (16.4 ºC), Redcliffe (17.6 ºC), 0.9 ºC above average at Logan City Treatment Plant (15.9 ºC) and 1.2 ºC above average (19.1 ºC) at Cape Moreton, which observed the highest mean minimum temperature of all the official sites.
Seasonal Mean Daily Maximum Temperature: 27.8 ºC, 0.6 ºC above average and 1.6 ºC lower than the same season in 2019. This is the sixth highest on record and the lowest since 27.5 ºC in 2018. Many of the mean maximum temperatures observed by the official sites in the Brisbane area in spring were above average mostly at the inland sites with many sites also close to average. The sites that observed mean maximum temperatures that were close to average were between 0.1 ºC above average at Beerburrum (27.5 ºC) and 0.5 ºC above average at Brisbane (27.5 ºC) and Brisbane Aero (26 ºC). The lowest mean maximum temperature observed was 24.8 ºC at Cape Moreton Lighthouse (1.6 ºC above average). The inland sites that observed above average mean maximum temperatures were 1 ºC above average at Beaudesert (29.2 ºC) and 1.3 ºC above average at Archerfield (28.3 ºC). The highest mean maximum temperature was 2.2 ºC above average at Gatton and Amberley was 2 ºC above average (29.7 ºC). Brisbane observed a mean maximum temperature of 27.5 ºC, 0.5 ºC above average.
Lowest Monthly Mean Daily Maximum Temperature (September): 25.9 ºC, 0.5 ºC above average and 2.3 ºC lower than same month in 2019. This is the fifth highest on record for September and the lowest since 25.4 ºC in 2018. Many of the official sites in the Brisbane area measured close to average mean maximum temperatures and was above average at many of the inland sites. The sites that measured close to average maximum temperatures ranged between 0.4 ºC below average at Beerburrum (25.7 ºC) and 0.5 ºC above average at Beaudesert (26.8 ºC). The lowest mean maximum temperature was 23 ºC at Cape Moreton Lighthouse (1.4 ºC above average). The highest mean maximum temperature was 27.8 ºC at Gatton which observed the highest anomaly from the long term average of 2.2 ºC above average. Many of the other inland sites measured above average temperatures at Amberley (1.8 ºC above average and a mean maximum temperature of 27.5 ºC) and Archerfield (1.2 ºC above average and a mean maximum temperature of 26.5 ºC). Brisbane observed a mean maximum temperature of 25.9 ºC (0.2 ºC above average).
Highest Monthly Mean Daily Maximum Temperature (November): 29.7 ºC, 0.4 ºC above average and 2.4 ºC lower than same month in 2019. This is the fourth lowest on record for November and the lowest since 27.2 ºC in 2017. Most of the official sites in the Brisbane area measured above average mean maximum temperatures and were at least 1 ºC above average at all of the inland sites. Three sites were however close to average and was equal to the long-term average at Redcliffe with a mean maximum temperature of 27.2 ºC, 0.3 ºC above average at Brisbane Aero (27.3 ºC) and 0.4 ºC above average at Beerburrum (29 ºC). The lowest mean maximum temperature of all the sites was observed at Cape Moreton Lighthouse (26.2 ºC) and was 1.4 ºC above average. The inland sites measured anomalies that were between 1.1 ºC above average at Archerfield (29.7 ºC) and 2.8 ºC above average at Gatton (33.1 ºC), which observed the highest mean maximum temperature. Amberley measured a mean maximum temperature of 32 ºC (2.3 ºC above average) and Beaudesert was 1.5 ºC above average (31.6 ºC). Brisbane observed a mean maximum temperature of 28.9 ºC (0.6 ºC above average).
Monthly Mean Maximum Daily Temperature for October: 27.8 ºC, 1 ºC above average and 0.1 ºC lower than same month in 2019. This is the fourth lowest on record for October and the lowest since 26.6 ºC in 2018. The majority of the official sites in the Brisbane area observed above average mean maximum temperatures and were at least 1 ºC above average at most of these sites. The only site that was close to average at Beerburrum at 0.4 ºC above average with a mean maximum temperature of 27.8 ºC. The lowest mean maximum temperature of 25.3 ºC was observed at Cape Moreton Lighthouse which observed both the highest mean maximum temperature of all the sites and greatest positive anomaly above the long term average of +2.2 ºC. Except for Brisbane at 0.8 ºC above average with a mean maximum temperature of 27.8 ºC the remaining sites were between 1 ºC above average at Redcliffe (26.5 ºC) and 1.9 ºC above average at Amberley (29.7 ºC). The mean maximum temperature at Cape Moreton was a record high for October exceeding the previous record of 25.2 ºC in 2005.
Seasonal Mean Temperature: 21.4 ºC, 0.5 ºC above average and 0.7 ºC lower than same season in 2019. This is the fifth highest on record and the lowest since 21.1 ºC in 2018.
Lowest Mean Monthly Temperature (September): 16.1 ºC, 0.7 ºC above average, 0.1 ºC higher than same month in 2019. This is the equal highest on record for September and the highest since the current record high of 16.8 ºC in 2017.
Highest Mean Monthly Temperature (November): 23.4 ºC, 0.1 ºC below average, 1.4 ºC lower than the same month in 2019. This is the fifth lowest on record for November and the lowest since 21.5 ºC in 2017.
Mean Monthly Temperature (October): 21.4 ºC, 0.7 ºC above average, 0.2 ºC higher than the same month in 2019. This is the equal fifth highest on record for October and the highest since 22.2 ºC in 2017.
Lowest Temperature: 8 ºC on 27 September 2020 at 5:56 AM. Same month and season in 2019 was 6.9 ºC. This is the equal third highest monthly minimum temperature for September on record, the highest since 8.9 ºC in 2016 on 4 September at 6:15 AM, the equal twenty-first lowest daily minimum temperature and the lowest since 7.7 ºC on 13 September 2019 at 5:47 AM. For spring this is the equal second highest seasonal minimum temperature on record, the highest since the current record high of 8.7 ºC in 2013 on 6 September at 6:20 AM, the equal twenty-third lowest daily spring minimum temperature and the lowest since 7.7 ºC on 13 September 2019 at 5:47 AM. Official stations in the Brisbane area observed the lowest temperature of the month at most sites on the 27th and at Point Lookout on the 29th. The lowest was -0.2 ºC at Canungra on the 27th and the highest was 13.9 ºC at Cape Moreton Lighthouse on the 27th. There were some cool nights at some sites in the first half of the month and several cool nights in the last few nights in the month. Brisbane observed its lowest temperature of 10.3 ºC on the 27th. The lowest temperature for the season for the official sites ranged between 1.5 ºC at Amberley on 27 September 2020 and 13.9 ºC at Cape Moreton Lighthouse on 27 September 2020. The lowest observed temperature at Brisbane in spring was 10.3 ºC on 27 September 2020.
Monthly Lowest Temperature (for October): 11.6 ºC on 10 October 2020 at 4:15 AM. Same month in 2019 was 9.2 ºC. This is the highest monthly minimum temperature for October on record, exceeding the previous record high of 10.9 ºC in 2017 on 22 October at 5:25 AM, the equal thirty-third lowest daily minimum temperature and the lowest since 10.4 ºC on 13 October 2019 at 3:17 AM. Official stations in the Brisbane area observed the lowest temperature of the month at many sites on the 1st and at some sites on the 4th, 10th, 15th, 16th and 29th. The lowest was 7.5 ºC at Amberly on the 1st and the highest was 16.2 ºC at Cape Moreton Lighthouse on the 29th. In the Brisbane area below average overnight temperature occurred in the first half of the month, with very few cool nights in the second half of the month. Brisbane observed its lowest temperature of 14.6 ºC on the 1st and 4th.
Monthly Lowest Temperature (for November): 12.8 ºC on 10 November 2020 at 4:45 AM. Same month in 2019 was 11.4 ºC. This is the sixth highest and lowest monthly minimum temperature for November on record, the highest since 13.9 ºC in 2015 on 18 November at 4:40 AM, the equal tenth lowest daily minimum temperature and the lowest since 11.4 ºC on 10 November 2019 at 4:40 AM. Official stations in the Brisbane area observed the lowest temperature of the month on the 4th, 6th and 8th to 11th. The lowest was 8.2 ºC at Canungra on the 10th and the highest was 17.6 ºC at Cape Moreton Lighthouse on the 8th. In the Brisbane area below average overnight temperatures occurred until the 12th before several periods of warm nights during the rest of the month, interspersed with some cool nights. Brisbane observed its lowest temperature of 15.5 ºC on the 11th.
Highest Temperature: 35.3 ºC on 17 November 2020 at 10:24 AM. The same month and season in 2019 was 40.3 ºC. This is the fifth lowest monthly maximum temperature for November on record, the lowest since 31.2 ºC in 2017 on 4 November at 12:05 PM, the equal twelfth highest daily maximum temperature and the highest since 36 ºC on 16 November 2019 at 11:07 AM. For spring this is the third lowest seasonal maximum temperature on record, the lowest since 34.4 ºC in 2011 on 15 November at 2:21 PM, the equal sixteenth highest daily maximum temperature and the highest since 36 ºC on 16 November 2019 at 11:07 AM. The official sites measured the highest temperature for the month at many sites on the 29th and at some sites on the 1st, 17th, 24th and 26th. The lowest was 28.8 ºC at Cape Moreton on the 26th and the highest was 39.8 ºC at Gatton on the 29th. The highest temperature observed at Brisbane was 32.2 ºC on the 24th. Most days on the first 13 days of the month were below average before predominately above average temperatures during the remainder of the month. The highest temperature for the season of the official sites ranged between 30 ºC at Cape Moreton Lighthouse on 31 October 2020 and 39.8 ºC at Gatton on 29 November 2020. The highest observed temperature at Brisbane during spring was 32.2 ºC on 24 November 2020.
Lowest Maximum Temperature: 20.4 ºC on 10 September 2020 at 1:08 PM. This is the fifth lowest monthly and daily maximum temperature for September on record and the lowest since 19.7 ºC in 2018 on 30 September at 8:59 PM. Same month in 2019 was 23.4 ºC and this season in 2019 was 21.3 ºC. For spring this is the sixth highest seasonal lowest maximum temperature on record, the lowest since the current record low of 18.6 ºC in 2018 on 13 October at 8:55 AM, the equal twelfth lowest daily maximum temperature and the lowest since 19.4 ºC on 14 October 2018 at 9:27 AM. The official sites measured the coolest day of the month on the 10th at most sites and on the 11th at some sites. These ranged between 20 ºC at Logan City Treatment Plant on the 10th and 21.8 ºC at Redcliffe on the 11th. The lowest maximum temperature observed at Brisbane was 20.9 ºC on the 10th. In the Brisbane area there were cool days in the first 13 days of the month, mostly between the 6th and 13th. In the last few days of the month were some cool days. For spring, the lowest observed maximum temperature at Brisbane was 20.9 ºC on 10 September 2020 and for all of the official sites this was 19.5 ºC at Canungra on 10 September 2020.
Lowest Daily Maximum Temperature (for October): 23.8 ºC on 14 October 2020 at 11:31 AM. This is the third highest monthly highest daily maximum temperature for October on record, the highest since 24 ºC in 2014 on 9 October at 2:45 PM, the equal twenty-eighth lowest daily maximum temperature and the lowest since 21.3 ºC on 12 October 2019 at 4:55 PM. Same month in 2019 was 21.3 ºC. The official sites measured the coolest day of the month on the 14th, 20th, 21st, 22nd, 24th and 27th. These ranged between 23.2 ºC at Cape Moreton Lighthouse on the 20th and 25.5 ºC at Beaudesert on the 24th. The lowest maximum temperature observed at Brisbane was 24.7 ºC on the 14th. In the Brisbane area there were some cool days on some days in the second half of the month.
Highest Daily Minimum Temperature: 21.9 ºC on 25 November 2020 at 1:12 AM. This is the sixth highest and lowest monthly minimum daily temperature on record for November, the lowest since 21.8 ºC in 2017 on 29 November 2020 at 10:55 PM, the thirteenth highest daily minimum temperature and the highest since 22.8 ºC on 28 November 2019 at 7:50 AM. Same month in 2019 was 22.9 ºC and this season in 2019 was 22.9 ºC. For spring this is the equal sixth highest seasonal daily minimum temperature, the equal lowest since the 21.9 ºC in 2017, sixth highest daily minimum temperature and the equal thirteen highest and the highest since 22.9 ºC on 28 November 2019 at 7:50 AM. In the Brisbane area the warmest night occurred at most sites on the 15th and at Cape Moreton Lighthouse on the 7th and Point Lookout on the 19th. These ranged between 15 ºC at Logan City Treatment Plant and 18.4 ºC at Cape Moreton Lighthouse. The highest minimum temperature measured at Brisbane was 16.9ºC on the 15th. An especially warm night was on the 15th with some sites measuring minimum temperatures that were more than 5 ºC above average. There were some warm nights throughout the month with many of the warm nights on the 7th and 8th and again on the 13th to 16th. Brisbane’s highest minimum temperature observed during spring was 22.8 ºC on 16 November 2020 and for all the official sites this was 23.9 ºC at Logan City Treatment Plant on 17 October 2020.
Highest Daily Minimum Temperature (for September): 20.6 ºC on 23 September 2020 at 5:17 AM. This is the highest monthly minimum daily temperature on record for September, exceeding the previous record high of 19 ºC in 2009 on 22 September. Same month in 2019 was 17.1 ºC. In the Brisbane area the warmest nights occurred on the 22nd and 23rd. These ranged between 18.1 ºC at Amberley on the 23rd and 21.8 ºC at Redcliffe on the 23rd. The highest minimum temperature measured at Brisbane was 20.8 ºC on the 23rd. Warm nights between the 18th and 24th peaking on the 21st to 23rd. Some warm nights at some sites in the first half of the month. Point Lookout observed a record high daily minimum temperature for September of 21 ºC on the 22nd exceeding the previous record high of 20.8 ºC in 2017 on the 28th.
Seasonal Average Minimum Grass Temperature: 12.9 ºC (0.1 ºC higher than same season in 2019)
Lowest Seasonal Minimum Grass Temperature: 4.6 ºC on 27 September 2020 (0.7 ºC lower than same month in 2019). This coincided with the lowest minimum air temperature of 8 ºC for the month.
Highest Seasonal Minimum Grass Temperature: 20.7 ºC on 25 November 2020 (1.2 ºC lower than same month in 2019). This coincided with the highest minimum air temperature of 21.9 ºC for the month.
Highest Minimum Grass Temperature Depression: 3.9 ºC on 6 November 2020 with a minimum grass temperature of 9.8 ºC and an air temperature of 13.7 ºC.
Lowest Minimum Grass Temperature Depression: 0.6 ºC on 27 November 2020 with a minimum grass temperature of 18.6 ºC and an air temperature of 18 ºC.
Minimum September temperatures were predominately above average with a low number of cool nights that mostly occurred in the last few days of the month. The 3rd to 7th was a warm period of between 1 ºC and 3 ºC above average. The 18th to 24th was another period of warm nights of at least 2 ºC above average and peaked at 6 ºC to 9 ºC on the 22nd to 24th. The last few nights of the month were below average of 1 ºC to 4 ºC below average.
Minimum temperatures in October were near or below average in the first half of the month before warm nights during most of the second half of the month. During the first half of the month until the 21st the coolest nights were on 1st and 10th at 3 ºC below average, and otherwise within 2 ºC of the long term average. An 8 day warm period between the 22nd and 29th of up to 6 ºC above average on the 25th. The 30th was 2 ºC below average and 4 ºC above average on the 31st.
November minimum temperatures were near average or below average in the first half of the month and then warm nights during the rest of the month with some cool nights. Cool nights early in the month were 2 ºC to 5 ºC below average on the 1st, 3rd to 6th, and 9th to 11th. After near average temperature during the middle of the month a warm period of 2 ºC to 4 ºC above average occurred on the 15th to 19th. The 20th was 2 ºC below average, which after some near average nights it was 4 ºC above average on the 24th to 25th. In the last few days of the month temperatures were mostly near average.
September maximum temperature saw a mixture of below and above average temperatures. Cool days on the 6th and the 13th of between 1 and 5 ºC below average before mixed temperature observed during the middle of the month. The days warmed between the 20th and 25th that rose to 5 ºC above average on the 24th and 3 ºC above average on the 25th. Late in the month were temperatures that were close to average or slightly below average.
October maximum temperatures were above average throughout the month with very few cool days and several days close to average, mostly in the first half of the month. The first 13 days of the month saw near average temperatures except for the 9th being 5 ºC above average. The 14th was 3 ºC below average before several days during the second half of the month that were above average of up to 6 ºC above average on the 31st. The 19th, 22nd and 27th was however 3 ºC below average.
November maximum temperature were mostly below average in the first half of the month before most days were warm during the rest of the month. The 1st was 3 ºC below average, which after easing to near average and was 3 ºC above average on the 5th and 8 day cool period followed until the 13th that peaked at 7 ºC below average on the 8th and gradually eased to 1 ºC below average in the 12th and 13th. Warm days followed of 2 ºC to 4 ºC above average on the 14th to 16th, rising to 6 ºC above average on the 17th. Another warm period on the 21st to 24th of 2 ºC to 5 ºC above average. The month ended with temperatures within 2 ºC of the long term average but was 5 ºC above average on the 29th.
Seasonal Mean Daily Minimum MSL Pressure: 1015.5 hPa (0.9 hPa higher than same season in 2019). This is the third highest on record for spring and the highest since 1016.5 hPa in 2015.
Monthly Mean Daily Minimum MSL Pressure (for September): 1018.9 hPa (1.9 hPa higher than same month in 2019). This is the highest on record for September exceeding the previous record high of 1017.2 hPa in 2015.
Seasonal Mean Daily Maximum MSL Pressure: 1020.6 hPa (0.4 hPa higher than same season in 2019). This is the second highest on record for spring and the highest since the current record high of 1021.8 hPa in 2015.
Monthly Daily Maximum MSL Pressure (for September): 1024 hPa (1.5 hPa higher than same month in 2019). This is the highest on record for September exceeding the previous record high of 1022.9 hPa in 2015.
Monthly Daily Maximum MSL Pressure (for October): 1019 hPa (1.8 hPa lower than same month in 2019). This is the lowest on record for October exceeding the previous record low of 1019.3 hPa in 2009.
Monthly Daily Maximum MSL Pressure (for November): 1019 hPa (2.2 hPa higher than same month in 2019). This is the highest on record for November exceeding the previous record high of 1018.9 hPa in 2009.
Seasonal Mean MSL Pressure: 1018.1 hPa (1.3 hPa above average) and 0.7 hPa higher than same season in 2019. This is the second highest on record for spring and the highest since the current record high of 1019.2 hPa in 2015.
Monthly Mean MSL Pressure (for September): 1021.4 hPa (3.2 hPa above average, 1.7 hPa higher than same month in 2019). This is the highest on record for September exceeding the previous record high of 1020.1 hPa in 2015.
Lowest Seasonal MSL Pressure: 1003.3 hPa on 5 November 2020 at 3:22 PM. The same month in 2019 saw 1006.5 hPa and the same season in 2019 saw 1001.3 hPa. This is the fifth lowest monthly minimum air pressure for November, the highest since 1007.6 hPa in 2017 on 7 November at 2:10 AM. the twelfth lowest daily minimum air pressure for November and lowest since 1003 hPa in 2019 on 9 November at 12:46 AM. For spring this is the sixth highest seasonal minimum air pressure, the highest since 1003.7 hPa in 2017 on 27 October at 2:10 AM, the sixteenth lowest daily minimum air pressure for spring and the lowest since 1003 hPa on 9 November 2019 at 12:46 AM.
Seasonal Highest Pressure: 1030.4 hPa on 8 September 2020 at 8:30 AM. The same month in 2019 saw 1029.5 hPa and the same season in 2019 was 1030 hPa. This is the third highest September monthly maximum air pressure, the fifth highest daily maximum air pressure for September and the highest since 1030.7 hPa in 2015 on 11 September at 9:10 AM. For spring this is the fourth highest seasonal pressure on record, the highest since 1033.2 hPa in 2015 on 13 October at 7:49 AM, the eighteenth highest daily air pressure and the highest since 1031.8 hPa on 9 October 2015 at 8:55 AM.
Note: Air pressure measurements are being closely monitored to maintain its accuracy as much as possible. Over the season, a difference of 0.01 hPa higher compared to the official BoM Brisbane site – No. 040913 was observed which is deemed to be optimum.
Seasonal Mean Daily Minimum Humidity: 44.9 % (17 % higher than same season in 2019 and 0.8 % below average). This is the fifth lowest on record for spring and the highest since 46.4 % in 2018.
Seasonal Mean Daily Maximum Humidity: 91.7% (7.2% higher than same season in 2019 and 2.7% above average). This is the fifth highest on record for spring and was the highest since 92.2 % in 2015.
Seasonal Mean Humidity: 68.2 % (8.5 % higher than same season in 2019 and 0.9 % above average). This is the sixth lowest on record for spring and the highest since 68.9 % in 2018.
Seasonal Lowest Humidity: 12 % on 27 September 2020 at 1:59 PM (6% higher than this month in 2019 and 11% higher than same season in 2019). This is the second lowest monthly minimum humidity for September on record, the lowest since the current record low of 6 % in 2019 on 4 September at 3:30 PM, the equal seventh lowest daily minimum humidity for September and the lowest since 9% in 2019 on 18 September at 2:58 PM. For spring this is the third lowest seasonal minimum relative humidity, the highest since 20% in 2017 on 7 September at 2:49 PM, the equal seventh lowest daily minimum relative humidity and the lowest since 7% on 10 November 2019 at 12:28 PM.
Monthly Lowest Humidity (for October): 28 % on 30 October 2020 at 1:49 PM (10% higher than this month in 2019). This is the second highest monthly minimum humidity for October on record, the highest since the current record high of 31 % in 2010 on 17 October at 3:21 PM, the equal eleventh lowest daily minimum humidity for October and the lowest since 27% in 2019 on 20 October at 12:02 PM.
Seasonal Highest Humidity: 98 % on 29 October 2020 at 5:43 AM (equal to this month in 2019 and 5% higher than same season in 2019). This is the equal third highest monthly October maximum humidity on record and the equal highest since 98% in 2019 on 20 October at 6:59 AM. For spring this is the third highest seasonal maximum relative humidity on record and the highest since 99% in 2018 on 22 October at 8:50 AM.
Monthly Lowest humidity (for November): Highest Humidity: 96 % on 15 November 2020 at 2:01 AM (2 % lower than this month in 2019). This is the equal third highest monthly November maximum humidity on record and the second lowest since the current record low of 87% in 2016 on 20 November at 6:59 AM.
Seasonal mean daily minimum dew point: 12 ºC (0.1 ºC below average). This is the fifth lowest seasonal mean minimum dew point on record for spring, and the highest since 12.5 ºC in 2017.
Seasonal mean daily maximum dew point: 17.9 ºC (1 ºC above average). This is the highest seasonal mean maximum dew point on record for spring exceeding the previous record high of 17.7 ºC in 2013.
Monthly mean maximum dew point (for September): 16.2 ºC (1.8 ºC above average). This is the second highest mean maximum dew point for September on record and highest since the current record high of 16.7 ºC in 2013.
Seasonal mean dew point: 14.9 ºC (0.4 ºC above average). This is the equal fourth highest seasonal mean dew point on record for spring and the highest since 15 ºC in 2017.
Seasonal lowest dew point: -5.3 ºC on 27 September 2020 at 2:00 PM. This is the second lowest monthly minimum dew point for September on record, the lowest since the current record low of -11.6 ºC in 2019 on 9 September at 1:30 PM, the tenth lowest daily dew point for September and the lowest since -8.8 ºC on 18 September 2019 at 2:59 PM. For spring this is the second lowest seasonal minimum dew point on record, the highest since -2.8 ºC in 2018 on 24 November at 2:44 PM, the thirteenth lowest daily dew point for spring and the lowest since -8.7 ºC on 10 November 2019 at 5:10 PM.
Monthly lowest dew point (for October): 8.4 ºC on 10 October 2020 at 4:58 AM. This is the highest monthly minimum dew point for October on record, exceeding the previous record high of 7.4 ºC in 2018 on 26 October at 5:45 PM, the thirty-third lowest daily dew point for October and the lowest since 7.9 ºC on 21 October 2019 at 11:42 AM.
Seasonal highest dew point: 24.1 ºC on 16 November 2020 at 1:24 AM. This is the fifth highest monthly maximum dew point on record for November, the highest since 25.2 C in 2018, the sixth highest daily dew point and the highest since 20.9 ºC on 6 November 2018 at 11:40 PM. For spring this is the fifth highest seasonal maximum dew point on record, the seventh highest daily dew point and the highest since 25.2 ºC in 2018 on 6 November at 11:40 AM.
Monthly highest dew point (for September): 21.6 ºC on 22 September 2020 at 3:19 PM. This is the second highest monthly and daily maximum dew point on record for September and the highest since the current record high of 22.1 ºC in 2013 on 26 September at 2:15 PM.
Maximum Wind Gust: 62 km/hr on 28 October 2020 at 3:01 PM. This is the fourth highest monthly and daily October maximum wind gust and the highest since 66.1 km/hr in 2016 on 17 October at 10:04 AM. The maximum wind gust this month in 2019 was 46 km/hr and this season in 2019 was 64 km/hr. For spring this is the third lowest maximum seasonal wind gust, the lowest since 58.3 km/hr in 2013 on 25 October at 8:43 AM, the twelfth highest daily maximum wind gust and the highest since 64 km/hr on 5 November 2019 at 11:46 AM.
Maximum Monthly Wind Gust (for September): 50 km/hr on 26 September 2020 at 11:15 AM. This is the fourth lowest September maximum wind gust, the lowest since 42.7 km/hr in 2013 on 16 September at 3:41 PM, the equal eighteenth highest daily wind gust on record for September and the highest since 54 km/hr on 9 September 2019 at 11:22 AM.
Maximum Monthly Wind Gust (for November): 35 km/hr on 24 November 2020 at 5:42 PM. This is the lowest monthly November maximum wind gust on record exceeding the previous record low of 45 km/hr in 2010 on 13 November at 1:06 PM, the fifty-first highest daily wind gust for November and the equal highest since 35 km/hr on 26 November 2019 at 4:07 PM.
Maximum Wind Speed: 27 km/hr on 31 October 2020 at 6:18 PM (Moderate Force Wind). This is the third lowest monthly maximum wind speed for October on record, the highest since 25 km/hr in 2018 on 4 October at 4:26 PM, the twenty-seventh highest daily wind speed for October and the highest since 40.2 km/hr in 2018 on 31 October at 12:46 PM. This month in 2019 was 25 km/hr and this season in 2019 was 23 km/hr. For spring this is the lowest seasonal maximum wind speed on record, exceeding the previous record low of 33 km/hr in 2019 on 5 November at 1:45 PM, the equal fifty-sixth highest daily maximum wind speed and the highest since 33 km/hr in 2019 on 5 November at 1:45 PM.
Monthly Maximum Wind Speed (for November): 22 km/hr on 24 November 2020 at 4:45 AM (Moderate Force Wind). This is the lowest monthly maximum wind speed for November on record, exceeding the previous record low of 22.7 km/hr in 2011 on 22 November at 5:00 PM, the equal forty-fifth highest daily wind speed for November and the highest since 22 km/hr in 2019 on 13th November at 7:54 AM.
Seasonal Wind Run: 9876.2 km (2853 km less than same season in 2019). This is the second highest on record and the highest since the current record high of 12729.2 km in 2019. This is 2637.8 km above average and 36.4 % above average.
Wind Run (for September): 3305.8 km (804.3 km lower than same month in 2019), 415.6 km above average and 15.4 % above average. This is the second highest on record for September total wind run and the highest since the current record high of 4110.1 km in 2019.
Wind Run (for October): 3023.6 km (806.8 km lower than same month in 2019), 191.2 km above average and 1.1 % above average. This is the second highest on record for October total wind run and the highest since the current record high of 3830.4 km in 2019.
Wind Run (for November): 4788.7 km (1241.9 km lower than same month in 2019), 209.8 km above average and 1.1 % above average. This is the second highest on record for November total wind run and the highest since the current record high of 4788.7 km in 2020.
Seasonal Mean Wind Speed: 4.5 km/hr (1.4 km/hr lower than this season in 2019, 0.4 km/hr above average and 8.9 % above average) and the second highest on record for spring, with the current record being 5.9 km/hr in 2019.
Monthly Mean Wind Speed (for September): 4.6 km/hr (1.1 km/hr lower than this month in 2019), 0.6 km/hr above the long term average). This is the second highest on record for September and the highest since the current record high of 5.7 km/hr in 2019.
Monthly Mean Wind Speed (for October): 4.1 km/hr (0.9 km/hr lower than this month in 2019), 0.1 km/hr above the long term average). This is the second highest on record for October and the highest since the current record high of 5.2 km/hr in 2019.
Monthly Mean Wind Speed (for November): 4.9 km/hr (1.8 km/hr lower than this month in 2019), 00.4 km/hr above the long term average). This is the equal second highest on record for November and the highest since the current record high of 6.7 km/hr in 2019.
Daily Mean Maximum Wind Gust: 27.3 km/hr (3.3 km lower than this season in 2019), 2.5 km/hr above average and 9.2% above average. This is the third lowest daily mean maximum wind gust for spring on record and the lowest since 26 km/hr in 2012.
Daily Mean Maximum Wind Gust (for September): 27.6 km/hr (1.3 km/hr higher than this month in 2019), 2.8 km/hr above average and 11.4 % above average. This is the second lowest daily mean maximum wind gust on record for September and the highest since 26.2 km/hr in 2011.
Daily Mean Maximum Wind Gust (for November): 26.2 km/hr (7 km/hr lower than this month in 2019), 0.9 km/hr above average and 3.5% above average. This is the second lowest daily mean maximum wind gust on record for November and the lowest since the current record low of 24.5 km/hr in 2012.
Daily Mean Maximum Wind Speed: 14.2 km/hr, 2 km/hr less than same season in 2019, 3.9 km/hr above average and 27.5 % above average. This is the lowest daily mean maximum wind speed on record for spring exceeding the previous record low of 14.4 km/hr in 2018.
Daily Mean Maximum Wind Speed (for September): 14.1 km/hr, 0.4 km/hr higher than this month in 2019), 3.8 km/hr above average and 36.7 % above average. This is the lowest on record for September exceeding the previous record low of 27.7 km/hr in 2012.
Daily Mean Maximum Wind Speed (for October): 14.4 km/hr, equal to this month in 2019), 3.7 km/hr above average and 35.3 % above average. This is the second lowest on record for October and lowest since 9.7 km/hr in 2018.
Daily Mean Maximum Wind Speed (for November): 14.4 km/hr, equal to this month in 2019), 3.7 km/hr above average and 35.3 % above average. This is the second lowest on record for November and lowest since the current record low of 12 km/hr in 2011.
Dominant Direction: E (NE this season in 2019).
Seasonal Rainfall Total: 138.4 mm (55.1 mm below average and 71.5% of the long term average), this season in 2019 was 65.5 mm. This is the thirteenth highest spring rainfall on record, the highest since 323 mm in 2018 and ranks as decile 4/ 35th percentile and as average. Spring was 36.6 mm below the long-term median (79.1 % of long term median). Rainfall totals in spring as measured by the official sites in the Brisbane area were below average to near average. The lowest rainfall total of the main official sites was 78.6 mm at Amberley (43 % of the long term average and ranked as low). The lowest fraction of the long term average was observed at Cape Moreton Lighthouse at 39% with a rainfall total of 92 mm. Archerfield was 63 % of the long term average (132 mm) and Logan City Treatment Plant was 67 % of the long term average (139.4 mm) also ranked as low. The remaining sites that were coastal observed near average rainfall totals that ranked between 71 % of the long term average at Brisbane Aero (140.4 mm) and 105 % of the long term average at Brisbane (208.6 mm). Brisbane observed the highest total of the main official sites and the highest of all the official sites was 286.1 mm at Wallen Wallen (North Stradbroke Island).
Number of Rain Days: 19 days, 4 greater than same season in 2019 and 6 days above average. This is the equal ninth highest on record for spring and the highest since 35 days in 2018.
Number of Rain Days (0.1 mm or greater) for November: 4 days, equal to same month in 2019 and 4.3 days below average. This is equal second lowest on record for November and is the lowest since 4 days in 2019.
Highest Daily Total: 35 mm on 28 October 2020. This is the ninth highest for October highest daily rainfall on record, the highest since 56.5 mm on 6 October 2018, the eleventh highest daily total on daily basis for October and the highest since 40.3 mm on 15 October 2018. The highest daily total in the Brisbane area of all official sites was 78.5 mm at Dunwich on 26 October 2020. For spring this is the sixteenth lowest daily rainfall total on record, the highest since 56.5 mm in 2018 on 6 October 2018, the thirtieth highest daily rainfall total and the highest since 40.3 mm on 15 October 2018. The highest daily total in the Brisbane area of all official sites in spring was 78.5 mm at Dunwich on 26 October 2020.
Highest Daily Total for November: 4 mm on 18 November 2020. This is the lowest on record for November highest daily rainfall on record, exceeding the previous record low of 6.7 mm in 2019 on 2 November, the ninthly-first highest daily total on daily basis for November and the highest since 6.7 mm on 2 November 2019. The highest daily total in the Brisbane area of all official sites was 41 mm at Redcliffe on the 1st.
Wettest Month (October): 119.5 mm (55 mm above average) and 185.4% of the long-term average. This total is in decile 9/ 88th percentile which ranks as high and 76.3 mm above the long-term median (262.9 % of long term median). This total is higher than this month in 2019 which was 48.5 mm, the fifth highest on record for October and the highest since 264 mm in 2018. The long period rainfall totals continued to remain well below average during most periods, that improved for some of the periods. Compared to the previous month the 6 monthly rainfall improved by 130 mm to 64.5 mm below average (decile 2) while 9 monthly rainfall continued to be above average at 97.2 mm above average (decile 6) and remained quite similar to the previous month. 12 month rainfall improved to 12.2 mm above average from 58.6 mm below average in the previous month. 18 month rainfall worsened from 166.6 mm below average to 231.8 mm below average (decile 2). 24 month and 48 month improved from the previous month (341.9 mm below average and decile 3 for 24 monthly and 117.1 mm below average and decile 4 for 48 monthly rainfall). 36 monthly rainfall worsened by 110 mm to 323.3 mm below average (decile 3). Compared with the same period in the previous year most of these periods improved, however 24 and 36 monthly rainfall worsened and was the lowest since 2007 (455.8 mm below average for 24 monthly and 624.9 mm below average for 36 monthly rainfall).
The official sites in the Brisbane area observed near or above average rainfall totals. The sites that ranked historically as average saw totals that were between 59 % of the long term average at Amberley (a total of 42.6 mm) and 119% of the long term average at Redcliffe (105.8 mm). Amberley observed the lowest rainfall total of the main official sites. Many sites observed totals that ranked as high at inland and coastal sites of between 121% of the long term average at Beaudesert (95 mm) and 155% of the long term average at Brisbane Aero with a total of 119.2 mm. The greatest total of the all of the official sites was 182.8 mm at Brisbane at 221 % of the long term average and ranked as very high.
Driest Month (November): 4.7 mm (91.2 mm below average) and 4.9% of the long-term average. This total is in decile 1/ 6th percentile which ranks as very low and 70.1 mm below the long-term median (5.7 % of long term median). This total is lower than this month in 2019 which was 14.2 mm and is the lowest on record for November exceeding the previous record low of 14.2 mm in 2019. Most long period rainfall totals continue to remain well below average, that improved for some of these periods. As compared to the previous month the 6 monthly rainfall improved slightly to 58 mm below average, while remaining at decile 2. 9 monthly rainfall deteriorated in a major way from 97.2 mm (decile 6 ) to 205.9 mm below average (decile 1), while 12 month rainfall remained nearly the same as the previous month at 3.4 mm above average (decile 6). 18 month rainfall is 138.1 mm below average (decile 3) and is an improvement of 93.7 mm compared to the previous month. 24 monthly and 48 monthly dropped from the previous month and was 384 mm below average (decile 2) and 140.7 mm below average (decile 4) respectively. 36 monthly rainfall improved by 64.5 mm to 258.8 mm below average (decile 4). Compared with the same period in the previous year most of these periods improved, except for 36 monthly rainfall which have worsened and was the lowest since 2008 when it was 334.2 mm below average.
All of the official sites in the Brisbane area measured below to well below average rainfall totals. Most sites saw totals that ranked historically as low or very low. The site that measured a total closest to the long term average was Redcliffe at 57 % of the long term average with a total of 47.2 mm and ranked as average. Conversely the lowest total was 6.6 mm at Beaudesert which was 9 % of the long term average, ranked as very low and measured the lowest fraction of the long term average of all the official sites. The other sites that measured totals that ranked as very low were up to 28 % of the long term average which was measured by Beerburrum with a total of 30.8 mm. A number of sites measured totals that ranked as low and was between 23% of the long term average at Brisbane with a total of 20 mm and 39 % of the long term average at Amberley with a total of 30.8 mm. Brisbane Aero observed a total of 13.8 mm and ranked as the lowest on record and was 16 % of the long term average.
September Monthly Rainfall: 14.2 mm (19 mm below average) and 42.7% of the long-term average. This total is in decile 4/ 36th percentile which ranks as average and 6.3 mm below the long-term median (69.3 % of long term median). This total is higher than this month in 2019 which was 2.8 mm, the twelfth lowest on record for September and the highest since 38 mm in 2018. The long period rainfall totals remained well below average during most periods while deteriorating further. Compared to the previous month, 6 monthly rainfall fell significantly to 161.7 mm below average (decile 2) being more than 6 months since above average rainfall at the start of the year. 9 monthly rainfall increased its positive anomaly which was 79.4 mm above average (decile 6). The periods of 12 to 48 months remained below average and fell further for most of these periods. 12 monthly rainfall remained like the previous month of 72.4 mm below the long-term average (decile 5). 18 months to 48 months rainfall was between 119 mm below average (decile 4) for 36 month rainfall and 245.3 mm below average (decile 4) for 24 month rainfall.
All the official sites in the Brisbane area observed below average rainfall totals. Most of the sites observed totals that ranked historically as low that saw totals that were between 16% and 35% of the long term average. 2 of the sites saw totals that ranked as average being 17.8 mm at Beerburrum (38 % of the long term average) and 27.2 mm at Redcliffe (74% of the long term average), which observed the highest percentage of the long term average and highest total of the main official sites. The highest total for all the official sites was 93.5 mm at Caloundra Airport. The lowest rainfall total and smallest percentage of the long term average was 0 mm and 0% for Beaudesert. Brisbane observed a total that was 32 % of the long term average with a total of 5.8 mm and this ranked as low.
Seasonal Rainfall Total – (automatic gauge) 24 hours to 9am: 137.8 mm (0.6 mm less than official standard gauge and within 0.4 %). Highest daily total of automatic gauge, (24 hours to 9am): 26.6 mm on 26 October 2020, (24 hours from midnight): 33.4 mm on 28 October 2020..
Note: This automatic gauge for the season meet the expected accuracy (of +/- 10% of the standard gauge) of -0.4%. Note: The rain gauge meet the expected accuracy in each month: September 2020 at -2.8% and +0.1% for October 2020 and -6.4 % for November 2020.
There was 8 days with falls of at least 25 mm (1 more than same season in 2019) with 5 days of less than 1 mm (1 less than same season in 2019).
Highest rainfall rate was 261.8 mm/hr on the 25 October 2020 at 2:14 PM. This rainfall rate for October exceeded the previous record high of 261.3 mm/hr in 2018 on 21 October at 4:24 PM. For spring this is the highest rainfall rate on record exceeding the previous record high of 261.3 mm/hr in 2018 on 21 October at 2:24 PM.
Monthly highest rainfall rate (for November) was 49.8 mm/hr on the 17 November 2020 at 2:48 PM. This is the second lowest monthly rainfall rate for November on record, the lowest since the current record low of 9.6 mm/hr in 2011 on 26 November at 6:40 PM, the fourteenth highest daily maximum rain rate for November and the highest since 53 mm/hr on 1 November 2019 at 6:42 AM.
The highest hourly rainfall total was 21.4 mm on the 25 October 2020 at 2:26 PM. This is the second highest hourly rain for October on monthly basis, the highest since 21.8 mm in 2018 on 5 October at 3:50 PM, the fourth highest daily hourly rainfall for October and the highest hourly total for October since 28.6 mm on 21 October 2018 at 3:14 PM. For spring this is the third highest daily and seasonal maximum hourly rainfall on record and the highest since the current record high of 64.8 mm on 12 November 2016 at 3:59 PM.
Monthly highest hourly rainfall total (for November): 4 mm on the 17 November 2020 at 3:10 PM. This is the lowest hourly rain for November on monthly basis, exceeding the previous record low of 4.6 mm in 2011 on 26 November at 8:30 PM, the twentieth highest daily hourly rainfall for November and the highest hourly total for November since 5.6 mm on 1 November 2019 at 3:16 PM.
September rainfall was close to average with a total of 14.2 mm and was 42.7% of the long term average which ranked as average. Rainfall fell over 3 days which was 1.5 days above average. All the official sites in the Brisbane area observed below average rainfall totals. In the Brisbane area there were showers on the 7th along and near a surface trough with totals generally less than 10 mm, though some sites in the north and along the bay measuring higher totals. Showers occurred on the 11th and 19th from onshore flow. At the end of the month were light showers at some locations. At Ferny Grove daily rainfall totals were low with light showers during some days during the month. A thunderstorm passed to the south on the 25th and brought a brief light shower.
Rainfall in October was above average with a total of 119.5 mm which was 185.4% of the long term average and ranked as high. Rainfall was observed over 12 days which was 4.2 days above average. The official sites in the Brisbane area observed near or above average rainfall totals. In the Brisbane area showers and thunderstorms developed over the south-east on the 13th and 14th with mostly light falls. From the 22nd a series of surface troughs shifted through along with a deep trough that stalled over eastern Queensland on the 24th. Over the region widespread thunderstorms with moderate to heavy falls were reported on the 24th and 25th, 27th and 28th with some sites receiving heavy rainfall, strong wind gusts and hail. In the afternoon of the 31st there were severe thunderstorms that impacted Greater Brisbane. At Ferny Grove was a mild thunderstorm and light showers during some days in the first half of the month. From the 19th to the end of the month an active period of showers, rain and thunderstorms that occurred on many of these days, with some moderate to heavy falls. A severe thunderstorm in the afternoon of the 25th brought 14 mm of rainfall in 8 minutes and marble sized hail. 2 hours of thunder in the afternoon of the 31st, with very little rainfall as 4 thunderstorms passed close by.
In November there was 4.7 mm of rainfall and was below average which was 4.9% of the long term average, ranked as very low and was the lowest on record exceeding the previous record low of 14.2 mm in 2019. Rainfall was observed on 4 days which was 4.3 days below average. All of the official sites in the Brisbane area measured below to well below average rainfall totals. In the Brisbane area for the official sites rainfall measured on the 1st was a result of severe thunderstorms during 31st October. Severe thunderstorms developed in the Greater Brisbane area on the 5th before showers in the following few days due to moist onshore winds. On the 13th was further thunderstorms which brought some isolated falls in excess of 20mm but rainfall totals on the 14th were generally less than 5mm. Rainfall totals of less than 10 mm resulted from thunderstorms on the 17th. Most rainfall in the month at Ferny Grove occurred on the 17th from the edge of two mild thunderstorms when 4 mm was measured. On the 5th there was a mid-afternoon brief light shower from a thunderstorm passing to the south with 0.5 mm of rainfall. On the 13th there was some light rain but with no measurable rainfall.
Number of severe thunderstorms: 1
Number of thunderstorms: 6 (Mild: 4, Moderate: 1)
Number of thunder days: 10 days
Number of nearby only storms: 2
Severe thunderstorms in the Brisbane area:
September:
October:
The Bureau reported that:
November:
NOTE: This is a summary of the aforementioned monthly and seasonal records exceeded over a monthly basis. Additionally, it lists records that are the lowest or highest in at least 5 years. See end notes for more information about record periods.
Record high spring mean daily minimum temperature |
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Observed [C] |
Old record |
Years of record |
Seasonal average |
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15.1 |
15.6 in 2010 |
10 |
14.7 |
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Record high September mean daily 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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13.3 |
14.1 in 2010 |
11 |
12 |
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Record low April mean 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 |
23.8 in 2014 |
10 |
23.9 |
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Record high spring daily 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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8 on 27th September at 5:56 AM |
8.7 in 2013 on 6th September at 6:20 AM |
11 |
14.7 |
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Record high October daily minimum temperature |
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Observed [C] |
Old record |
Years of record |
Monthly average |
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11.6 on 10th at 4:15 AM |
10.9 in 2017 on 22nd at 5:25 AM |
11 |
14.5 |
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Record high November daily 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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12.8 on 10th at 4:45 AM |
13.9 in 2015 on 18th at 4:40 AM |
11 |
17.6 |
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Record high October daily lowest maximum temperature in at least 5 years |
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Observed [C] |
Most recent higher |
Years of record |
Monthly average |
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23.8 on 14th at 11:31 AM |
24 in 2014 on 89th at 2:45 PM |
11 |
26.8 |
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Record high September daily 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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20.6 on 23rd at 5:17 AM |
19 in 2009 on 22nd |
11 |
12 |
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Record high spring mean daily 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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1015.5 |
1013.5 in 2015 |
10 |
1014.3 |
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Record high September mean daily minimum MSL pressure |
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Observed [hPa] |
Old record |
Years of record |
Monthly average |
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1018.9 |
1017.2 in 2015 |
11 |
1015.5 |
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Record high spring mean daily maximum 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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1020.6 |
1021.8 in 2015 |
10 |
1019.3 |
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Record high September mean daily maximum MSL pressure |
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Observed [hPa] |
Old record |
Years of record |
Monthly average |
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1024 |
1022.9 in 2015 |
11 |
1021 |
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Record low October mean daily maximum MSL pressure in at least 5 years |
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Observed [hPa] |
Most recent lower |
Years of record |
Monthly average |
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1019 |
1019.3 in 2009 |
11 |
1025.5 |
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Record high November mean daily maximum MSL pressure |
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Observed [hPa] |
Old record |
Years of record |
Monthly average |
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1019 |
1018.9 in 2009 |
11 |
1017.1 |
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Record high spring 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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1018.1 |
1019.2 in 2015 |
10 |
1016.8 |
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Record low September mean MSL pressure |
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Observed [hPa] |
Old record |
Years of record |
Monthly average |
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1021.4 |
1020.1 in 2015 |
11 |
1018.2 |
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Record high spring maximum 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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1030.4 on 8th September at 8:30 AM |
1031.8 in 2015 on 8th October at 8:55 AM |
10 |
1019.3 |
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Record high September 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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1030.4 on 8th at 8:30 AM |
1030.7 in 2015 on 11th at 9:10 AM |
11 |
1021 |
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Record high spring mean daily maximum relative humidity in at least 5 years |
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Observed [%] |
Most recent higher |
Years of record |
Seasonal average |
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91.7 |
92.2 in 2015 |
10 |
89 |
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Record high October daily minimum relative humidity in at least 5 years |
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Observed [%] |
Most recent higher |
Years of record |
Monthly average |
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28 on 30th at 1:49 PM |
27 in 2019 on 20th 12:02 PM |
11 |
47.2 |
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Record low spring mean maximum dew point in at least 5 years |
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Observed [C] |
Most recent lower |
Years of record |
Seasonal average |
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17.9 |
17.9 in 2012 |
10 |
18.3 |
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Record high September mean daily maximum dew point in at least 5 years |
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Observed [C] |
Most recent higher |
Years of record |
Monthly average |
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16.2 |
16.7 in 2013 |
11 |
14.2 |
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|
Record high October daily minimum dew point |
|||||||||
Observed [C] |
Old record |
Years of record |
Monthly average |
||||||
8.4 on 10th at 4:58 AM |
7.4 in 2018 on 26th at 5:45 PM |
11 |
13.2 |
||||||
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|
|
Record high September maximum dew point in at least 5 years |
|||||||||
Observed [C] |
Most recent higher |
Years of record |
Monthly average |
||||||
21.6 |
22.1 in 2013 on 26th at 2:15 PM |
11 |
14.2 |
||||||
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|
|
Record low spring maximum wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Seasonal average |
||||||
62 on 28h October at 3:01 PM |
58.3 in 2013 on 25th October at 8:43 AM |
9 |
24.8 |
||||||
|
|
|
|
|
|
|
|
|
|
Record high September highest wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent higher |
Years of record |
Monthly average |
||||||
50 on 26th at 11:15 AM |
54 in 2019 on 9th at 11:22 AM |
10 |
24.8 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low November highest wind gust |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Monthly average |
||||||
35 on 24th at 5:42 PM |
45 in 2010 on 13th at 1:06 PM |
10 |
24.9 |
||||||
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|
|
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|
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|
Record low spring maximum wind speed |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Monthly average |
||||||
27 on 31st October at 6:18 PM |
33 in 2019 on 5th at 1:45 PM |
9 |
10.3 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low November highest wind speed |
|||||||||
Observed [km/hr] |
Old record |
Years of record |
Monthly average |
||||||
22 on 24th at 4:45 AM |
22.7 in 2011 on 22nd at 5:00 PM |
11 |
10.2 |
||||||
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|
|
Record low spring mean daily maximum wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Seasonal average |
||||||
27.3 |
26 in 2012 |
9 |
24.8 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low September mean daily maximum wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
27.6 |
26.2 in 2011 |
9 |
24.8 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low November mean daily maximum wind gust in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
26.2 |
24.5 in 2012 |
11 |
25.3 |
||||||
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|
|
Record low spring daily mean wind speed in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Seasonal average |
||||||
14.2 |
14.4 in 2018 |
9 |
10.3 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low September mean daily maximum wind speed in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
14.1 |
27.7 in 2012 |
9 |
10.3 |
||||||
|
|
|
|
|
|
|
|
|
|
Record low November mean daily maximum wind speed in at least 5 years |
|||||||||
Observed [km/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
14.4 |
12 in 2011 |
11 |
10.7 |
||||||
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|
Record low November total rainfall total |
|||||||||
Observed [mm] |
Old record |
Years of record |
Monthly average |
||||||
4.7 |
14.2 in 2019 |
33 |
95.9 |
||||||
|
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|
|
|
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|
|
|
Record low November highest daily rainfall total |
|||||||||
Observed [mm] |
Old record |
Years of record |
Monthly average |
||||||
4 on 18th |
6.7 on 2nd in 2019 |
33 |
34.7 |
||||||
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Record high spring and October maximum rainfall rate |
|||||||||
Observed [mm/hr] |
Old record |
Years of record |
Seasonal/ Monthly average |
||||||
261.8 on 25th October at 2:14PM |
261.3 in 2018 on 21st October at 4:24 PM |
11 |
155.4/85.4 |
||||||
|
|
|
|
|
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|
|
|
Record low November maximum rainfall rate in at least 5 years |
|||||||||
Observed [mm/hr] |
Old record |
Years of record |
Monthly average |
||||||
49.8 on 17th at 2:48 PM |
9.6 in 2011 on 26th at 6:40 PM |
9 |
103.7 |
||||||
|
|
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|
|
Record low November maximum rainfall rate |
|||||||||
Observed [mm/hr] |
Most recent lower |
Years of record |
Monthly average |
||||||
49.8 on 17th at 2:48 PM |
9.6 in 2011 on 26th at 6:40 PM |
9 |
103.7 |
||||||
|
|
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|
|
|
|
|
Record low November highest hourly rainfall |
|||||||||
Observed [mm] |
Old record |
Years of record |
Monthly average |
||||||
4 on 17th at 3:10 PM |
9.6 in 2011 on 26th at 6:40 PM |
9 |
20.4 |
||||||
|
|
|
|
|
|
|
|
|
|
NOTE: These records are drawn from automatic data record for this site. See end notes for more information.
All time records |
No records |
Monthly records |
September |
Highest Minimum Temperature: 20.6 °C on 23 Sep 2020 at 5:17 am |
October |
Maximum Rainfall Intensity: 261.8 mm on 25 Oct 2020 at 2:14 pm |
November |
No records |
Summary of Averages and Extremes for spring 2020 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 |
September |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
13.3 |
25.9 |
19.6 |
12.6 |
11.2 |
2.1 |
44.5 |
91.8 |
68.2 |
1018.9 |
1024.0 |
1021.4 |
12.7 |
27.6 |
14.1 |
0.5 |
Min |
8.0 |
20.4 |
16.1 |
8.5 |
4.6 |
1.3 |
12 |
70 |
41.0 |
1006.8 |
1015.3 |
1011.1 |
-5.3 |
19.0 |
10.0 |
|
Max |
20.6 |
32.6 |
25.9 |
18.7 |
18.0 |
3.4 |
66 |
98 |
80.0 |
1026.5 |
1030.4 |
1028.4 |
21.6 |
50.0 |
27.0 |
7.2 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14.2 |
October |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
15.0 |
27.8 |
21.4 |
12.9 |
12.9 |
2.1 |
45.4 |
93.7 |
69.5 |
1014.3 |
1019.0 |
1016.6 |
15.5 |
28.0 |
14.4 |
3.9 |
Min |
11.6 |
23.8 |
19.0 |
5.4 |
9.1 |
0.8 |
28 |
82 |
60.0 |
1004.5 |
1011.5 |
1008.3 |
8.4 |
19.0 |
10.0 |
|
Max |
20.1 |
32.6 |
25.7 |
17.7 |
17.9 |
3.5 |
72 |
98 |
84.5 |
1024.0 |
1027.7 |
1025.8 |
23.5 |
62.0 |
27.0 |
35.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
119.5 |
November |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
17.0 |
29.7 |
23.4 |
12.6 |
14.7 |
2.4 |
44.7 |
89.6 |
66.9 |
1013.2 |
1018.9 |
1016.1 |
16.4 |
26.3 |
14.1 |
0.2 |
Min |
12.8 |
22.6 |
19.3 |
4.8 |
9.8 |
0.6 |
23 |
70 |
50.5 |
1003.3 |
1011.6 |
1007.9 |
5.2 |
21.0 |
10.0 |
|
Max |
21.9 |
35.3 |
27.9 |
18.4 |
20.7 |
3.9 |
55 |
96 |
75.5 |
1021.5 |
1025.5 |
1023.4 |
24.1 |
35.0 |
22.0 |
4.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4.7 |
Season |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
15.1 |
27.8 |
21.4 |
12.7 |
12.9 |
2.2 |
44.9 |
91.7 |
68.2 |
1015.5 |
1020.6 |
1018.0 |
14.9 |
27.3 |
14.2 |
1.5 |
Min |
8.0 |
20.4 |
16.1 |
4.8 |
4.6 |
0.6 |
12 |
70 |
41.0 |
1003.3 |
1011.5 |
1007.9 |
-5.3 |
19.0 |
10.0 |
|
Max |
21.9 |
35.3 |
27.9 |
18.7 |
20.7 |
3.9 |
72 |
98 |
84.5 |
1026.5 |
1030.4 |
1028.4 |
24.1 |
62.0 |
27.0 |
35.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
138.4 |
Summary for spring 2020 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 long-term average (%) |
September |
|
|
|
|
|
|
|
|
Average |
+0.9 |
+2.1 |
+3.2 |
1.0 |
+2.8 |
+3.8 |
-19.0 |
42.7 |
Min |
+1.3 |
+1.8 |
|
0.2 |
|
|
|
|
Max |
+0.5 |
+2.5 |
|
1.8 |
|
|
-2.3 |
|
October |
|
|
|
|
|
|
|
|
Average |
+0.7 |
+0.8 |
-0.7 |
+0.8 |
+3.6 |
+4.4 |
55.0 |
185.4 |
Min |
+0.4 |
-1.8 |
|
+0.5 |
|
|
|
|
Max |
+1.0 |
+3.4 |
|
+1.1 |
|
|
+92.7 |
|
November |
|
|
|
|
|
|
|
|
Average |
-0.1 |
-0.2 |
+1.4 |
-0.5 |
+0.9 |
+3.7 |
-91.2 |
4.9 |
Min |
-0.5 |
-2.4 |
|
-1.1 |
|
|
|
|
Max |
+0.4 |
+2.1 |
|
+0.1 |
|
|
-30.0 |
|
Season |
|
|
|
|
|
|
|
|
Average |
+0.5 |
+0.9 |
+1.3 |
+0.4 |
+2.5 |
+3.9 |
-55.1 |
71.5 |
Min |
+0.4 |
-0.8 |
- |
-0.1 |
- |
- |
- |
- |
Max |
+0.6 |
+2.7 |
- |
+1.0 |
- |
- |
- |
- |
Monthly averages and extremes for spring 2020 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 |
|
|
|
Sep-20 |
13.3 |
25.9 |
8.0 |
32.6 |
19.6 |
+1.3 |
+0.5 |
+0.9 |
14.2 |
- 19.0 |
3 |
Oct-20 |
15.0 |
27.8 |
11.6 |
32.6 |
21.4 |
+0.5 |
+1.1 |
+0.8 |
119.5 |
55.0 |
12 |
Nov-20 |
17.0 |
29.7 |
12.8 |
35.3 |
23.4 |
-0.5 |
+0.4 |
-0.1 |
4.7 |
-91.2 |
4 |
Season |
15.1 |
27.8 |
8.0 |
35.3 |
21.4 |
+0.4 |
+0.6 |
+0.5 |
138.4 |
-55.1 |
19 |
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 3/4/21. 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. This replaced non professional equipment of low accuracy with differences in the measured data. The new equipment measures the daily average wind speed and wind run about 40 % higher. Daily rainfall and grass minimum temperature is measured using non-professional equipment of moderate accuracy.
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. 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 a positive value when the grass temperature is below the air temperature.
Up until March 9 2019 automatic records as 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. From March 9 2019 the automatic record became the official record instead, simplifying this process. Until replaced on 5 October 2018 the 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.
Long term averages are based on all available long period past measurements from October 2019 whilst for non automatic rainfall is based on 1987 to 2017 average from the station record, while. Prior to this the 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 2018 average from station record. Wind Run is 2011 to 2018 and Rain Rate and High Hourly Rain is 2011 to 2017.
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”.