Monthly Meteorological Report for Ferny Grove, Brisbane in July 2019 – above average temperatures and below average rainfall

In July overnight temperatures were above average and daytime temperatures were well above average and record high. The official sites in the Brisbane area observed above average overnight temperatures at most sites, while maximum temperatures were well above average at all sites and around 2 ºC above average at the inland sites. Brisbane observed a record run of maximum temperatures of over 22 ºC from the 16th to 31st. Rainfall at Ferny Grove was below average but was near the long term median. The official sites also similarly measured below average rainfall totals and were well below the long term median at many sites. At Ferny Grove air pressure was above average, mean relative humidity was below average, mean maximum relative humidity was below average, mean minimum relative humidity was well below average, mean dew point was below average, mean minimum dew point was well below average, mean maximum dew point was near average, wind speed was near average, with zero thunderstorms (0 thunder days).

 

Temperature – well above average day-time and above average overnight temperatures

Monthly Mean Minimum Temperature: 9.5 ºC, 0.8 ºC above average and 1.4 ºC higher than same month in 2018. This is the fourth highest on record for July and the highest since 10.3 ºC in 2016. During July the official sites in the Brisbane area generally observed above average mean minimum temperatures, some were 1 ºC above average, while inland sites measured close to average mean minimum temperatures. The lowest mean minimum temperature observed was 5.1 ºC at Amberley (0.3 ºC below average). Sites also measuring close to average (within 0.5 ºC of the long term average) were Beaudesert (a mean minimum temperature of 5.6 ºC and 0.5 ºC below average which was the lowest anomaly from the long term average), Beerburrum (9.7 ºC and 0.4 ºC above average), and Gatton (0.4 ºC above average). The remaining sites which were mostly the more coastal sites were between 0.6 and 1.9 ºC above average. The highest mean minimum temperature and highest above average was observed by Cape Moreton Lighthouse (15.2 ºC and 1.9 ºC above average). Also sites measuring mean minimum temperatures of at least 1 ºC above average were Brisbane (1.1 ºC above average and a mean minimum temperature of 11.4 ºC) and Logan City Treatment Plant (10 ºC and 1.2 ºC above average).

 

Monthly Mean Maximum Temperature: 23.5 ºC, 2.4 ºC above average and 0.1 ºC higher than same month in 2018. This is the highest on record for July exceeding the previous record of 23.4 ºC in 2018. All of the official sites in the Brisbane area observed well above average mean maximum temperatures during July and highest were observed by the inland sites. The inland sites saw mean maximum temperatures that were between 1.8 ºC and 2.7 ºC above average. The highest mean maximum temperature was 24 ºC at Amberley (2.7 ºC above average). Also Gatton observed a mean maximum temperature that was 2.7 ºC above average (23.5 ºC). Archerfield was 1.8 ºC above average (23.1 ºC) and Beaudesert (23.1 ºC and 1.8 ºC above average). The other sites saw mean maximum temperatures that were between 1.1 ºC and 1.7 ºC above average. The lowest mean maximum temperature was 20.7 ºC at Cape Moreton Lighthouse (20.7 ºC and 1.7 ºC above average) and the lowest above average mean maximum temperature of 1.1 ºC above average was observed by Brisbane Aero (22 ºC). Brisbane observed a mean maximum temperature of 23.5 ºC (1.5 ºC above average). This is a record high for the current short period record for this site. Cape Moreton Lighthouse and Brisbane Aero equalled the existing record high mean maximum temperatures, while Amberley and Point Lookout saw new record high temperatures.

 

Mean Monthly Temperature: 16.5 ºC, 1.6 ºC above average and 0.7 ºC higher than same month in 2018. This is the highest on record for July exceeding the previous record of 16.2 ºC in 2016. Point Lookout observed a mean temperature of 18.5 ºC which equals the current record set in 2016. Cape Moreton Lighthouse observed a mean temperature of 18 ºC and is the highest since 18.5 ºC in 1993.

 

Lowest Temperature: 5.1 ºC on 16 July 2019 at 6:51 AM. Same month in 2018 was 1.8 ºC. This is the second highest monthly minimum temperature for July on record, the highest since the record high of 5.9 ºC in 2010 on 28 July at 7:37 AM, the twenty-eighth lowest daily July minimum temperature and the lowest since 3.2 ºC on 31 July 2018 at 6:57 AM. Official stations in the Brisbane area observed the lowest temperature of the month on the 15th and 16th at most sites and some sites on the 12th and 20th. The lowest was -3.2 ºC at Amberley on the 15th and the highest was 9.9 ºC at Cape Moreton on the 15th. The lowest temperature at Brisbane was 7.4 ºC on the 12th. Most sites observed cool nights in the middle of the month. Amberley observed seven nights in a row with a temperature at or less than 0 ºC.

 

Highest Temperature: 27.2 ºC at 2:04 PM on 24 July 2019. Same month in 2018 was 25.1 ºC. This is the third highest monthly maximum temperature for July on record, the highest since 27.9 ºC in 2018 on 28 July at 1:58 PM, the fourth highest daily maximum temperature for July and the highest since 27.9 ºC on 28 July 2018. The official sites measured the highest temperature for the month on the 23rd and 24th at most sites and at Cape Moreton on the 23rd and 28th. The lowest was 22 ºC at Cape Moreton Lighthouse on the 23rd and 28th and the highest was 27.3 ºC at Amberley on the 23rd. Brisbane observed its highest temperature of 27.1 ºC on the 23rd. Above average maximum temperatures were observed during most days of the month with persistent warmth interrupted with cooler temperatures on the 14th and 15th before returning for the rest of the month. In the first week of the month were some cool days at some sites. Brisbane observed a record 16 days in a row of a maximum temperature above 22 ºC from the 16th to 31st. Ferny Grove also observed 22 ºC and above maximum temperatures between the 16th and 31st.

 

Lowest Maximum Temperature: 20.2 ºC at 2:21 PM on 15 July 2019. This is the second highest monthly lowest maximum temperature for July on record, the lowest since 17.3 ºC in 2017 on 7 July at 3:35 PM, the thirtieth lowest maximum temperature for July and equal lowest since the 20.2 ºC on 10 July 2017. This month in 2018 was 20.5 ºC. Most of the official stations in the Brisbane area measured the coolest day on the 14th and at some sites on the 5th, 8th and 15th. These ranged between 15.8 ºC at Cape Moreton Lighthouse on the 14th and 20.1 ºC at Brisbane on the 14th and 15th. In the Brisbane area the official sites observed some cool days on the 14th and 15th and at some sites on some days during the first week of the month.

 

Highest Minimum Temperature: 14.8 ºC on 5 July 2019 at 4:47 AM. This is the fifth lowest monthly July highest minimum temperature on record, and the highest since 14.7 ºC in 2017 on 16 July at 10:43 PM, the tenth highest daily minimum temperature for July and the highest since 17.8 ºC on 7 July 2018 at 6:22 AM. This month in 2018 was 17.8 ºC. Many of the official stations in the Brisbane area measured the warmest night on the 6th and at some sites on the 3rd, 4th and 5th. These ranged between 13.1 ºC at Gatton on the 6th and 18.7 ºC at Point Lookout on the 4th. The highest minimum temperature at Brisbane was 15.4 ºC on the 5th. In the Brisbane area warm nights were observed at the start of the month and returned to a lesser extend at the end of the month.

 

Monthly Mean Minimum Grass Temperature: 7.2 ºC (0.2 ºC lower than same month in 2018)

 

Lowest Minimum Grass Temperature: 2.7 ºC on 16 July 2019 (3.3 ºC lower than same month in 2018). This coincided with the lowest minimum temperature of 5.1 ºC for the month.

 

Highest Minimum Grass Temperature: 13.1 ºC on 6 July 2019 (3.6 ºC higher than same month in 2018).

 

Highest Minimum Grass Temperature Depression: 5.3 ºC on 15 July 2019 with a minimum grass temperature of 8.3 ºC and an air temperature of 3 ºC.

 

Lowest Minimum Grass Temperature Depression: 1.3 ºC on 22 July 2019 with a minimum grass temperature of 8.3 ºC and an air temperature of 7.3 ºC.

 

Minimum temperatures during July were above average during many days with also many cool nights also during the month during the middle of the month. On the 1st to 3rd minimum temperatures were 3 ºC above average, before warming to 6 ºC above average on the 4th to 6th when the warmest night of the month was observed. The 7th was 5 ºC above average and the 8th was 4 ºC above average. It cooled to near average for 2 days with the 9th being 1 ºC above average and the 10th was near average. A cool period then followed between the 11th and 17th, with the 11th 2 ºC below average, the 12th and 13th was 1 ºC below average, the 14th was 2 ºC below average, 1 ºC below average on the 15th, 5 ºC below average on the 16th and 3 ºC below average on the 17th. It then warmed to 2 ºC above average, before another cool period. The 19th was 4 ºC below average, 3 ºC below average on the 20th and 2 ºC below average on the 21st. The 22nd was near average, 1 ºC above average on the 23rd, cooling to 2 ºC below average on the 24th and near average on the 25th. The 26th to 29th was 1 ºC to 2 ºC above average, near average on the 30th and 1 ºC above average on the 31st.

 

Most maximum temperatures were above average, with a low number of days that were cooler than average, which occurred during the first half of the month. The month started with a 4 day warm period with the 1st being 1 ºC above average, 2 ºC above average on the 2nd and 3rd and 3 ºC above average on the 4th. The 5th was near average before cooling to 1 ºC below average on the 6th. The 7th was near average and the 8th was 1 ºC below average. A warm period then followed between the 9th and 13th. The 9th to 11th was 3 ºC above average, the 12th was 5 ºC above average and the 13th was 3 ºC above average. It cooled to 1 ºC below average on the 14th and 15th. Then for the rest of the month an extended warm period followed. It started with the 16th and 17th being 2 ºC above average, 3 ºC above average on the 18th, 2 ºC above average on the 19th and 1 ºC above average on the 20th. The 21st was 2 ºC above average, 3 ºC above average on the 22nd and 6 ºC above average on the 23rd and 24th (27 ºC). The 25th and 26th was 3 ºC above average, 5 ºC above average on the 27th, 4 ºC above average on the 28th, 3 ºC above average on the 29th, 5 ºC above average on the 30th and 2 ºC above average on the 31st.

 

Heatwave Conditions (Maximum temperatures): Nil

 

MSL pressure – above average air pressure

Monthly Mean Minimum MSL Pressure: 1019.2 hPa (2.9 hPa higher than same month in 2018). This is the third highest on record for July and the highest since 1019.6 hPa in 2016.

 

Monthly Mean Maximum MSL Pressure: 1023.5 hPa (2.5 hPa higher than same month in 2018). This is the fourth highest on record for July and the highest since 1023.6 hPa in 2017.

 

Monthly Mean MSL Pressure: 1021.3 hPa (1.1 hPa above average, 2.2 hPa higher than same month in 2018). This is the third highest on record for July and the highest since the 1022.3 hPa in 2015.

Lowest MSL Pressure: 1013.9 hPa on 18 July 2019 at 2:26 PM. The same month in 2018 saw 1010.2 hPa. This is the highest monthly minimum air pressure for July, exceeding the previous record high of 1013 hPa on 31 July 2010 at 3:57 PM, the thirty-second lowest daily air pressure for July and the lowest since 1013.7 hPa on the 30 July 2018 at 3:46 AM.

 

Highest MSL Pressure: 1030.9 hPa on 7 July 2019 at 8:51 AM. The same month in 2018 saw 1027.7 hPa. This is the third highest July monthly maximum air pressure, the highest since 1033.4 hPa in 2015 on 29 July at 9:27 AM, the sixth highest daily maximum air pressure for July and the highest since 1033.4 hPa on 29 July 2015 at 9:27 AM.

Note: Air pressure measurements are being closely monitored to maintain its accuracy. Over the month of July, a difference of 0.08 hPa lower compared to the official BoM Brisbane site – No. 040913 was observed which is deemed optimum.

 

Relative Humidity – below average mean humidity, below average mean maximum humidity and well below mean minimum humidity

Monthly Mean Minimum Humidity: 35.4 % (9.2 % lower than same month in 2018 and 17.2 % below average). This is the lowest on record for July exceeding the old record of 43.3 % in 2014.

 

Monthly Mean Maximum Humidity: 84 % (6.6 % lower than same month in 2018 and 2.4 % below average). This is third lowest on record for July and the lowest since 81.9 % in 2012.

 

Monthly Mean Humidity: 59.7 % (7.9 % lower than same month in 2018 and 9.8 % below average). This is the lowest on record for July exceeding the previous record of 63.1 % in 2009.

 

Lowest Humidity: 7 % on 24 July 2019 at 3:03 PM (20 % lower than this month in 2018). This is the lowest monthly and daily minimum humidity for July on record exceeding the old record of 26 % on 13 July 2011 at 1:53 PM.

 

Highest Humidity: 94 % on 7:54 AM on 9 July 2019 at 7:51 AM (4 % lower than this month in 2018). This is the equal second lowest monthly July high humidity on record and the equal lowest since 94 % in 2012 on 15 July at 12:00 AM.

 

Dew point – below average mean, well below average mean minimum and near average mean maximum dew point

Monthly mean minimum dew point: 3.3 ºC (3.5 ºC below average). This is the lowest monthly mean minimum dew point for July on record exceeding the old record of 3.9 ºC in 2014.

 

Monthly mean maximum dew point: 11.6 ºC (0.1 ºC above average). This is the fourth lowest monthly mean maximum dewpoint for July and the lowest since 9.8 ºC in 2014.

Monthly mean dew point: 7.4 ºC (1.8 ºC below average). This is the fourth lowest monthly mean dew point for July on record and the lowest since the record low of 6.8 ºC in 2014.

 

Lowest dew point: -12.4 ºC on 24 July 2019 at 3:18 PM. This is the lowest monthly and daily dew point for July on record, exceeding the previous record of -0.6 ºC on 10 July 2014 at 6:35 AM.

 

Highest dew point: 17.7 ºC on 7 July 2019 at 1:07 PM. This is the third lowest monthly maximum dew point on record for July, lowest since 15.6 ºC in 2014 on 26 July at 5:56 PM, the fifteenth highest daily dew point for July and the highest since 19.5 ºC on 7 July 2018 at 10:55 AM.

 

Wind Speed – near average wind speed

Maximum Wind Gust: 48 km/hr on 13 July 2019 at 11:09 AM. This is the third lowest July maximum wind gust and the lowest since the record low of 31.9 km/hr in 2013 on the 31 July at 10:44 AM. The maximum wind gust this month last year was 58.3 km/hr. This is the fifteenth highest daily wind gust on record for July and the highest since 57 km/hr on 27 July 2018 at 3:58 PM.

 

Maximum Wind Speed: 25 km/hr on 15 July 2019 at 10:28 AM (Moderate Force Wind). This is the second lowest monthly maximum wind speed for July, the lowest since the record low of 22.5 km/hr in 2013 on 31 July at 1:25 PM, the seventeenth highest daily wind speed on record for July and the highest since 57 km/hr on 27 July 2018 at 11:10 AM.

Wind Run: 2731.7 km (1596.4 km higher than same month in 2018), 1603.1 km above average and 165.5 % above average. This is the highest on record for July total wind run exceeding the previous record of 1676.9 km in 2015.

 

Monthly Mean Wind Speed: 3.7 km/hr (2.2 km higher than this month in 2018), 2.2 km/hr above average and 46.6 % above average (approx. 7 % above average accounting for measuring equipment changes). This is the highest on record for July exceeding the previous record high of 2.2 km/hr in 2015.

 

Daily Mean Maximum Wind Gust: 24.2 km/hr (6.7 km/hr lower than this month in 2018), 2.2 km/hr below average and 10 % below average. This is the fifth highest daily mean maximum wind speed on record for July and the lowest since 22.7 km/hr in 2014.

 

Daily Mean Maximum Wind Speed: 12.3 km/hr, 4.4 km/hr lower than this month last year, 1.9 km/hr below average and 14.4 % below average. This is the second lowest daily mean maximum wind speed on record for July and the lowest since the record low for July of 11.6 km/hr in 2010.

 

Dominant Direction: S (S this month last year).

 

Rainfall – below average and near median rainfall

Monthly Rainfall Total: 17.6 mm (15.9 mm below average) and 52.5 % of the long term average. This total is in decile 4/ 34th percentile which ranks as average and 8.9 mm below the long term median (66 % of long term median). This total is lower than this month last year which was 20.9 mm, the ninth lowest on record for July and the lowest since 6.8 mm in 2014.

 

In July the main official sites in the Brisbane area saw below average rainfall totals at most sites. The lowest anomalies from the long term average were observed by the inland sites and these sites ranked as low or very low with totals ranging between 3.2 mm at Beaudesert (14 % of the long term average and ranking as very low) and 23.6 mm (21 % of the long term average and ranked as low). Some of these sites with totals ranking as low and very low were the island sites also. The remaining sites that were the more coastal locations ranked as average with totals of between 54% at Beerburrum (with a total of 33.8 mm which the highest total of the main sites) and 85 % of the long term average at Logan City Treatment Plant (with a total of 28.8 mm). Brisbane observed a total of 41.4 mm which was 57 % of the long term average. The highest total for the month of all sites was Rocky Point Sugar Mill with a total of 45.6 mm.

 

In the Brisbane area there a period of onshore showers on the 5th to 8th which produced most of the rainfall during the month. Little rainfall was experienced after the 10th.       

 

Number of Rain Days (0.1 mm or greater): 10 days, 4 greater than this month in 2018 and 4.3 days above average. This is the equal fifth highest on record for July and is the highest since 12 days in 2017.

 

Highest Daily Total: 11.2 mm on 7 July 2019. This is the fifteenth lowest July daily rainfall on record on monthly basis, the highest since 12.4 mm in 2017 which occurred on the 17 July, the twenty-second highest July daily rainfall on record on daily basis and the highest since 12.4 mm on 17 July 2017. The highest daily total in the Brisbane area of all official sites was 13 mm at Highvale on the 7th July 2019.

 

Monthly Rainfall Total – (automatic gauge) 24 hours to 9am: 18.2 mm (1 mm less than the site official standard gauge and within 9.5 %). Highest daily total of automatic gauge, (24 hours to 9am): 10.2 mm on 7 July 2019, (24 hours from midnight): 10.6 mm on 6 July 2019.

 

Note: This automatic gauge for the month of July, meets the accuracy (of +/- 10% of the standard gauge) at -9.5 %.

 

A late evening light shower on the 3rd brought 0.2 mm on the 4th. On the 4th there were some light afternoon showers and frequent early morning light showers on the 5th. On the 5th 2 mm were measured with occasional light brief showers during the morning. On the 6th 1.5 mm was measured before light frequent showers with brief heavy falls in the afternoon becoming less frequent in the evening. On the 7th there were frequent light showers in early hours, clearing in the early morning with 11.2 mm on the 7th. Showers returned from the late morning with brief moderate falls in the early afternoon, clearing mid-afternoon. 1.9 mm was measured on the 8th, after light showers in the early hours. 0.2 mm was measured on the 9th from drizzle from mid-morning to late morning on the 8th.

 

There was 0 days with falls of at least 25 mm (equal to same month in 2018) with 6 days of less than 1 mm (4 greater than same month in 2018).

 

Highest rainfall rate was 80 mm/hr on the 6 July 2019 at 2:09 PM. This is the highest monthly and daily rainfall rate for July exceeding the previous record high of 31.2 mm/hr on 7 July 2017 at 7:50 AM.

 

The highest hourly rainfall total was 5.4 mm on the 6 July 2019 at 3:02 PM. This is the third highest monthly and daily hourly rain for July maximum hourly rainfall, and the highest since 5.7 mm on 5 July 2016 at 9:45 AM.

 

Number of severe thunderstorms: 0

 

Number of thunderstorms: 0 (Mild: 0, Moderate: 0)

 

Number of thunder days: 0 days

 

Number of nearby storms: 0

 

Severe thunderstorms in the Brisbane area: Nil

 

Remarks for month:

• Early mist to north-east and early afternoon fall in temperature followed by a small rise until 4pm on the 1st.
• On the 2nd were high clouds and a warm morning
• Variable temperature and a warm morning on the 3rd
• A warm morning on the 4th with variable daytime temperature
• Cloudy on the 5th with high relative humidity which was variable in the morning and afternoon. A warm morning and variable temperature during the day
• The 6th saw a warm morning and a cloudy day. High dew point in the late morning, then falling variably from early afternoon while stable at times with high relative humidity.
• On the 7th was cloudy periods, a warm morning, dew point was high during the morning and high relative humidity
• Cloudy on the 8th becoming partly cloudy in the afternoon with high daytime relative humidity
• Sunny on the 9th and 10th
• A warm morning on the 10th with low daytime relative humidity and low dew point from late morning to late afternoon
• Cloud clearing early to a sunny and a warm day on the 11th. Low dew point early and from late morning to late afternoon with low daytime relative humidity
• Low relative humidity on the 12th and was variable in the early hours, sunny and a warm day
• Sunny and a warm day on the 13th with low dew point from afternoon and low relative humidity
• Sunny, low dew point becoming very low in the afternoon and low relative humidity on the 14th
• Low relative humidity and low and rising dew point on the 15th
• Sunny and a cold morning on the 16th, with low relative humidity and dew point
• A cold morning and sunny on the 17th. Fluctuating temperature early and late in the day. Low dew point returning to near average at times and low relative humidity
• Sunny on the 18th and a warm day. The temperature fluctuated in the early hours. Falling and low dew point and especially in the afternoon. Low relative humidity
• A cold morning on the 19th and sunny. Low relative humidity
• A cool morning with low dew point early on the 20th
• A rapid and brief fall in the dew point in the mid morning of the 21st
• A warm day on the 22nd
• Sunny and a hot day on the 23rd, low afternoon dew point, rising quickly to near average at 4 pm, and low daytime relative humidity
• Sunny and hot day on 24th, fluctuating temperature in the late afternoon and evening, dew point became very low in the afternoon with low daytime relative humidity
• Low relative humidity, low dew point early and a warm day on the 25th
• Quite variable temperature on 26th, a warm day and quite variable temperature during day
• Sunny and a warm day on the 27th, low afternoon dew point and low daytime relative humidity
• A warm day on the 29th
• Low dew point returning to near average late in the day on the 30th with low relative humidity and a warm day
• On the 30th the temperature fluctuated in afternoon
• Most sunny on the 30th with a warm day. A rapid fall in dew point in mid-afternoon becoming low for rest of day
• 14 Days of Dew during the month: 7 days of light – (12th, 20th and 28th to 31st), 7 days of moderate – (1st to 3rd, 9th to 11th and 23rd)

Weather influences

• On the 1st a high pressure system over south eastern Australia extended a ridge over the state and extended moist onshore winds along the east coast. A trough shifted westwards over the Coral Sea and maintained hazardous surf conditions off the southern Queensland coast
• On the 2nd and 3rd the high pressure system remained slow moving and maintained the ridge and onshore winds along the east Queensland coast. The hazardous surf conditions eased on the 2nd while a long period easterly swell continued. The hazardous surf redeveloped on the 3rd as the trough shifted westwards towards the east Queensland coast
• The high pressure system remained slow moving on the 4th while strengthening and continues to extend a ridge along the east Queensland coast. An upper level trough developed over the interior of the state and started to enhance shower activity along the east Queensland coast. The trough in the Coral Sea shifted west towards the central Queensland coast maintaining the hazardous surf conditions along the south coast
• On the 5th and 6th the high pressure system shifted eastwards into the Tasman Sea and maintained a firm ridge and onshore winds along the east Queensland coast. Hazardous surf remained along the southern Queensland coast. An upper level trough shifted eastwards and off the east Queensland coast early on the 6th, followed by another later in the day
• The high pressure system in the western Tasman Sea extended a weakening ridge along the east Queensland coast with onshore winds along the coast on the 7th
• An upper level trough shifted eastwards over the south on the 8th with instability confined mostly in the interior of the state. A weak surface trough also shifted eastwards across the state
• On the 9th a weak trough extended from northwest to central parts of the state while shifting eastwards. This extended dry air over southern Queensland. A high pressure system in the Tasman Sea shifted eastwards and another high pressure system shifted east over New South Wales contributing to the dry air mass
• A weak trough cleared off the southern Queensland coast on the 10th. A broad band of high pressure developed over the south of Australia and extended a stable and dry air mass northwards into the state
• The 11th saw a weak trough shift eastwards across the state and combined with a broad band of high pressure over the south extended a dry air mass over southern Queensland on the 11th and 12th
• On the 13th the band of high pressure shifted offshore and extended a dry and stable air mass over much of the state. A cold front swept eastwards over the south, reaching the south eastern inland late in the day, which introduced cool and dry air
• Following the front a large slow moving high pressure system over southern Australia from the 14th extended a stable, cool and dry air mass over most of the state with stable conditions
• A weak trough shifted eastwards through the region on the 17th maintaining the cool, stable and dry air mass as the high pressure system shifted very slowly eastwards over southern Australia
• The high pressure system shifted eastwards into south-eastern Australia on the 19th and into the Tasman Sea on the 20th. This maintained the air mass on the 19th with the ridge contracting northwards along the east Queensland coast on the 19th and 20th
• The high pressure system became slow moving over the Tasman Sea on the 21st with the dry and stable air mass remaining in place. The high pressure system became near stationary on the 22nd. A surface trough shifted eastwards over southern Queensland producing limited instability
• On the 23rd the air mass remained in place, though the high pressure ridge eased further
• The 24th saw the high pressure system remain near stationary and maintained a weak ridge and dry and stable air mass. A weak surface trough shifted eastwards through the region with dry air following the trough as another high pressure system shifted eastwards over central Australia
• On the 25th a high pressure system shifted eastwards over south eastern and eastern Australia and remained over the east on the 26th. This extended a ridge and cool dry air mass over the state. A weak trough lied over eastern Queensland
• A broad area of high pressure extended over south eastern Australia and southern Queensland on the 27th to 29th and extended a weak pressure pattern over the state. This continued to extend a dry and stable air mass. A weak trough remained in the region on the 27th and 28th, with a south-easterly wind change following
• On the 30th and 31st a high pressure system over southern Australia maintained the dry and stable air mass. Winds started to tend onshore as a high pressure ridge developed. A broad scale upper level trough developed over southern Queensland with instability confined to the interior

Daily weather notes

• 1/7/19: Early mist to the north-east. Fine and partly cloudy with sc clouds early and cu clouds from morning. Near average and generally falling dew point early before rising during the morning to moderately high and then slowly falling for the rest of the day. Early afternoon temperature drop was followed by a small rise until about 4pm. Light and variable winds early, and then SW to S from early morning with some S to SE winds in the mid afternoon and WSW to SSW in the evening.
• 2/7/19: Fine and partly cloudy. Ci and cs clouds from early morning with some cu clouds developing from morning. Near average dew point early before rising during the morning to moderately high and then stable before falling from late afternoon. A warm morning. Light and variable winds becoming S to SW from early morning with some N to E winds in late afternoon and then becoming calm in the evening.
• 3/7/19: Fine and partly cloudy with cu clouds from morning and as clouds from the late afternoon. Late evening light shower. A warm morning and variable temperature during the day. Near average dew point rising during the morning to moderately high, then falling from late morning back to close to average in afternoon and generally stable from late afternoon. Calm winds before light S to SW winds early, S to SE from late morning, backing from late afternoon and S to SW in late evening.
• 4/7/19: Fine until late afternoon light showers. Partly cloudy with cu and sc clouds. A warm morning. Near average dew point, rising slightly in the early morning, then variable but generally stable from the mid-morning, rose in the late morning but close to average and fell and rose close to average in evening. Variable daytime temperature. Low relative humidity early and late in the day. Light SSW to SW winds early and late in the day and SSE to SE from mid-morning.
• 5/7/19: Frequent early morning light showers. Occasional light brief showers from morning. Cloudy with ci, cs and as clouds in the morning, and cu clouds from morning. Moderately high and variable dew point over the day, falling slightly later in the day. High relative humidity and variable in morning and afternoon. A warm morning and variable temperature during the day. Light SSW to S winds, with SSE to SE during the morning and afternoon and some S to SE winds in the evening.
• 6/7/19: Light frequent showers with brief heavy showers in the afternoon less frequent in the evening. Cloudy with ns clouds. A warm morning. Moderately above average dew point rising during the morning becoming high in the late morning, then falling variably from early afternoon while stable at times. High relative humidity. Light SSE to SW winds early with some S to SE winds, S to SE from mid-morning, E to SW in late afternoon, S to E in evening and variable in late evening.
• 7/7/19: Frequent light showers in early hours, clearing in early morning. Showers returned from late morning with brief moderate falls in early afternoon, clearing mid-afternoon. Cloudy periods with ns and cu clouds. A warm morning. Variable temperature during morning and afternoon. Moderately high dew point early, rising to high during the morning, and then falling in the afternoon but remaining moderately high. High relative humidity. Light WNW to SSW winds, SSW to ESE from mid-morning.
• 8/7/19: Light showers in the early hours. Drizzle from mid to late morning. Cloudy with cu and ns clouds, partly cloudy in afternoon. Moderately high and stable dew point early, rising during the morning, stabilising in the afternoon and falling slowly from late afternoon. High daytime relative humidity. Light and variable winds early with SSE to W winds from early morning with some E to SE at times, becoming variable from late afternoon.
• 9/7/19: Fine and sunny. Limited cu cloud development from morning. Moderately high dew point falling to near average in early morning, rising to moderately high by mid-morning, and then generally falling from mid-morning becoming close to average from early afternoon, except for a small rise in the late afternoon. Light ESE to ENE winds in early morning, quickly becoming S to WSW, some N through W and some N through SE winds in mid to late afternoon becoming mostly calm in evening.
• 10/7/19: Fine and sunny. Early sc clouds clearing, with some cu clouds during the morning and clearing by midday. A warm day. Near average dew point rising during the morning to moderately high, then falling from mid-morning, becoming low from late morning and then rising slightly in the late afternoon and falling slowly in the evening. Low daytime relative humidity. Light and variable winds early, then N to NW winds from mid-morning with some W to NW and light and variable in the evening.
• 11/7/19: Fine, sunny and a warm day. Some sc early in the day, clearing to a cloud free day. Stable and low dew point early, rising to near average during the morning, before falling from mid-morning, becoming low from late morning, before rising to moderately low in the late afternoon and stable in the evening. Low daytime relative humidity. Light NNW to W winds from early morning, NNW to WNW in late afternoon and light and variable in the evening.
• 12/7/19: Fine and a warm day. Sunny and cloud free day except for some ci clouds in late afternoon. Low and variable dew point, rising to moderately high in late afternoon and falling slowly in the evening. Low relative humidity especially during the daytime and was quite variable in the early hours. Light and variable winds early before light W to SW winds from mid-morning, N to NW with some W to NW winds from late morning, and easing and becoming variable from the late afternoon.
• 13/7/19: Fine, sunny and a warm day. Some ci and cs clouds. Low and stable dew point early rising slightly during the mid-morning before stabilising. In the afternoon the dew point fell further, stabilising from mid-afternoon before starting to fall further in the late evening. Low relative humidity, especially during the day. Light and variable winds early before W to NW winds from mid-morning, moderate winds in early afternoon and WSW to WNW winds from the afternoon.
• 14/7/19: Sunny and fine. Some ci clouds in the morning. Low dew point falling during the morning and afternoon and became very low. The dew point fell to -11.5 degrees C in the mid afternoon and became very variable, before rising later in the afternoon and then falling in the early evening and then rose slowly for the rest of the evening while remaining low. Low relative humidity, especially during the daytime with a minimum of 11% in the afternoon. There was a short period rise and fall of the relative humidity in early morning and early evening. Light WNW to W winds early before easing in early morning, WNW to SW winds from morning and NNW to W winds in the evening.
• 15/7/19: Fine and some ci clouds in morning clearing. Low dew point slowly rising, becoming stable in the late morning and afternoon and rose slowly in the evening. Low relative humidity. Light WNW to WSW winds, moderate and gusty at times in the early hours and mid-morning, WNW to W from late afternoon and W to SW in late evening. Low apparent temperature over the entire day produced by the wind.
• 16/7/19: Fine, sunny and cloud-free. A cold morning. Fluctuating temperature in the evening due to the wind at times. Low and stable dew point early, rising slightly in the early morning, then stable to mid-afternoon. From mid-afternoon the dew point fell further, before rising in the late afternoon and stabilising in the evening. Low relative humidity over entire day and fluctuated in the evening. Light and variable winds early, then N to NW with some W to NW winds from early morning, before easing in the late afternoon. Light SW to NW winds at times in the evening.
• 17/7/19: Fine, sunny and cloud-free. A cold morning. Fluctuating temperature in the early hours and in the evening. Low and stable dew point early before rising during the morning and was near average at times and generally stable from late morning. In the late evening the dew point fell and became low. High daytime relative humidity and fell in the late evening. Light and variable winds early, increasing from the morning with SSW to SE winds, SE to NE from late morning, eased from the late afternoon before light N to NW winds later in the evening.
• 18/7/19: Fine, sunny and cloud-free. A warm day. Fluctuating temperature in the early hours including a brief dip in the temperature at 3 am. Stable dew point early before falling from mid-morning to very low (minimum of -9 C) in the afternoon before rising from late afternoon but remaining low. Low relative humidity. Light WNW to W winds early with some NNW to NW and SSW to W winds, N to WNW from early morning, WNW to SW from mid-morning, W to NW winds from late afternoon becoming light and variable in the evening before easing.
• 19/7/19: Fine, sunny and cloud-free. A cold morning. Stable and low dew point early, before rising from early morning becoming moderately low in the late afternoon and fell slowly in the evening. Low relative humidity and closer to average in the evening. Light and variable winds early, becoming SE to SW from early morning, then mostly N to NW from mid-morning, S to SE from mid-afternoon, ESE to ENE in late afternoon and light and variable and easing in the evening.
• 20/7/19: A cool morning and fine weather. Clear early becoming partly cloudy from morning with cu clouds easing in the afternoon. Variable temperature in late morning and afternoon. Low and stable dew point early before rising to near average in the early morning, falling slightly to moderately low in the mid-morning before becoming generally stable in mid-afternoon and falling slowly from late afternoon. Light and variable winds early, S to SW from early morning, some light and variable winds in the late morning, SE to NE from late morning, E to NE from mid-afternoon and becoming calm from late afternoon.
• 21/7/19: Fine. Clear early becoming partly cloudy from later in the morning with cu clouds developing and easing in the afternoon. Variable temperature later in the morning and in the afternoon. Moderately low dew point early fell slowly before rising to moderately high during the mid-morning and rapidly falling a short time later to near average where it became stable for the rest of the day but was variable at times. Calm winds becoming light S to ENE, E to NE from late morning, N to NE in late afternoon and calm in the evening.
• 22/7/19: Fine and a warm day. Light brief early evening shower. Partly cloudy with cu clouds early with cu developing from the morning. Variable temperature from mid-morning to mid-afternoon with a small and brief fall and rise in the temperature at midday. Near average and stable dew point early, before rising during the morning to moderately high from late morning, before falling from late afternoon returning to near average and generally stable from late afternoon. Light and variable winds and N through E at times from morning to late afternoon.
• 23/7/19: Fine, sunny and a hot day. Some sc and cu clouds from morning. Near average and slowly falling dew point early before rising during the morning becoming moderately high before falling from late morning and became low in the afternoon, and then rapidly rising at 4pm to near average before falling slowly for rest of the day. Low daytime relative humidity, rapidly rising at 4pm to near average. Light W winds early at times, light and variable from morning and S through to E in morning and early afternoon, with E to NE winds from 4pm to 5pm, becoming calm in the evening.
• 24/7/19: A sunny and hot day. Cloud-free except for some distant cu clouds to the east. Fluctuating temperature in the late afternoon and evening. Near average dew point early while falling slowly, before rising during the early morning close to average. From 10am the dew point fell becoming very low from the middle of day, to a low of -12 C before rising from late afternoon whilst remaining low. Low daytime relative humidity and variable in late afternoon and evening. Light and variable winds before W to NW winds from about 10 am for the rest of the day.
• 25/7/19: Fine and a warm day. Partly cloudy with cu clouds. Variable temperature in the morning and afternoon. Low dew point rising from early, becoming moderately low from early morning and near average from mid-morning and then rose at a slower rate, becoming stable in the evening. Low relative humidity before returning to near average during the day. Light WNW to NW winds at times early, SSW to SW from early morning, SSE to E from mid-morning, ESE to ENE in the afternoon, and light SSE to ESE at times in evening.
• 26/7/19: Fine and a warm day. Ci clouds from morning, with some cc clouds in the afternoon. Cu clouds developing from morning and became partly cloudy. Quite variable temperature from mid-morning to mid-afternoon. Near average dew point falling in the early hours before rising and became moderately high from mid-morning. The dew point fell quickly to near average in the mid-afternoon, and fell slower for the rest of the day. Light S to SW from early morning becoming light and variable, Light NNE to ENE winds in late afternoon and became calm in evening.
• 27/7/19: Fine, sunny and a warm day. Ci clouds early in the morning clearing and some cu clouds from morning. Near average dew point early, rising to moderately high during the morning, before falling from late morning becoming low from late afternoon, then rapidly and briefly rising at 4 pm to near average and fell slowly for rest of day. Low daytime relative humidity. Light and variable winds early at times before light N to NW winds from early morning, some W to NW winds in the mid afternoon and ESE to E winds in late afternoon and became light and variable from late afternoon.
• 28/7/19: Fine. Cu clouds from morning and partly cloudy at times. Variable temperature during the morning and afternoon. Near average dew point early slowly rose, before slightly falling in the mid-morning and becoming stable. The dew point fell slowly close to average during the evening after rising slightly in late afternoon. Variable but near average afternoon relative humidity. Light and variable winds at times early, light S to SW winds early before WSW to SE winds before shifting ESE to ENE from early afternoon, SSE to ENE in late afternoon and becoming calm in the evening.
• 29/7/19: Fine and a warm day. Early sc clouds early clearing and partly cloudy from morning with cu clouds. Near average dew point early falling slowly, before rising to moderately high during the morning before stabilising later in the morning. After quickly falling in early afternoon to near average the dew point slowly fell close to average for rest of the day. Variable temperature and relative humidity in morning and afternoon. Light and variable winds early, with SW to SE from early morning to early afternoon with light SE to NE winds in the morning and afternoon becoming calm in the evening.
• 30/7/19: Fine and a warm day. Partly cloudy with cu clouds developing from morning. Near average and slowly falling dew point, before rising during morning becoming moderately high and then falling quickly from later in the morning. The dew point became low from early afternoon, before rising to near average in late afternoon and fell slowly for rest of day. Low daytime relative humidity. Light and variable winds at times in early hours and during the morning, light SE to NE from early morning and WSW to SSE in afternoon. Winds shifted S to ESE in late afternoon, and gradually backing to S to SW in late evening.
• 31/7/19: Fine. Clear early and partly cloudy with cu clouds from morning. Fluctuating temperature in afternoon. The dew point fell slowly in the early hours to moderately low before rising to near average and stabilising in the early morning. Stable dew point until afternoon with a small rise in the late afternoon before falling slowly close to average. Light WNW to SSW at times early, light S to SW winds in early morning, SSW to SE from mid morning, SSE to ESE from late afternoon and light and variable at times in the evening.

 

Station records for July 2019

NOTE: This is a summary of the aforementioned monthly 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.

 

 

Key records for July 2019

NOTE: These records are drawn from automatic data record for this site. See end notes for more information.

 

 

 

Data summary tables for July 2019