Brisbane, Queensland, Australia, Latitude 27°S 23' 52", Longitude 152° E 55' 35", Elevation 76 m
At: Sat 24 Aug 2019 6:20:03 am, Temperature: 7.6 °C, Humidity: 81 %, Wind speed: 0 km/h, Wind Gust: 0 km/h, Rain today: 0.0 mm, MSLP: 1025.20 hPa
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During May overnight temperatures were above average and daytime temperatures were well above average. Rainfall at Ferny Grove was 40% of the long term average which ranked historically as average. Mean air pressure was well above average, mean humidity was below average, mean dew point was near average, wind speed was near average and there were zero thunderstorms (1 thunder days).
Monthly mean minimum temperature: 13.1 ºC, 0.7 ºC above average and 1.6 ºC higher than same month in 2018.
Monthly mean maximum temperature: 24.7 ºC, 1.4 ºC above average and 0.4 ºC lower than same month in 2018.
Monthly mean temperature: 18.9 ºC, 1.0 ºC above average and 0.5 ºC lower than same month in 2018.
Lowest temperature: 4.4 ºC on 31 May 2019 at 6:14 AM. Same month in 2018 was 6 ºC. This is the lowest monthly and daily minimum temperature for May on record, exceeding the previous record of 5.4 ºC on 15 May 2015 at 4:47 AM.
Highest temperature: 28 ºC at 2:31 PM on 8 May 2019. Same month in 2018 was 28.5 ºC.
Lowest maximum temperature: 20.6 ºC at 2:04 PM on 31 May 2019. This month in 2018 was 21.8 ºC.
Highest minimum temperature: 19.4 ºC on 4 May 2019 at 6:02 AM. This month in 2018 was 18.1 ºC.
Minimum temperatures were above average during much of the month, especially at the start of the month. Also there were some cool nights during the month but it was predominately warm. The month started with above average temperatures being 6 ºC to 7 ºC above average during the 1st to 4th, except for 4 ºC above average on the 3rd. It was then cooler with the 5th to 8th being 1 ºC to 2 ºC below average and the 8th was near average. The 9th was 3 ºC below average, while the 11th was 1 ºC above average and the 12th was 4 ºC below average. A period of above average temperatures followed between the 13th and 21st of 3 ºC to 4 ºC above average, though it was 2 ºC above average on the 18th and 19th. The 22nd, 24th and 26th was near average and the 23rd and 25th was 1 ºC below average. From 27th a cool period followed with the 27th being 2 ºC below average, the 28th 3 ºC below average, the 29th 1 ºC below average, the 30th was 6 ºC below average and the lowest temperature of the month of 4.4 ºC occurred on the 31st and was 8 ºC below average.
During May maximum temperatures were above average on most days with very few temperatures that were near or below average. The month started with a warm period until the 10th except for the 4th being near average. During these days maximum temperatures were 2 ºC to 3 ºC above average, increasing to 4 ºC to 5 ºC above average on the 8th to 10th. It then cooled to 1 ºC below average on the 11th, 1 ºC above average on the 12th and close to average on the 13th. The 14th to 16th was 1 ºC to 2 ºC above average cooling to close to average on the 17th and 18th. The 19th was 2 ºC above average and the 20th and 21st was 1 ºC above average. The 23rd to 25th was 1 ºC above average, warming to 4 ºC to 5 ºC on the 26th and 27th. The 28th was 1 ºC below average, close to average on the 29th and 30th and 3 ºC below average on the 31st.
Monthly mean minimum grass temperature: 11.6 ºC (3.4 ºC lower than same month in 2018)
Lowest minimum grass temperature: 1.8 ºC on 31 May 2019 (2.1 ºC lower than same month in 2018). This coincided with the lowest minimum temperature of 4.4 ºC for the month.
Highest minimum grass temperature: 18 ºC on 4 May 2019 (1 ºC higher than same month in 2018). This coincided with the highest minimum temperature of 19.4 ºC for the month.
Highest Minimum Grass Temperature Depression: 3.0 ºC on 29 May 2019 with a minimum grass temperature of 8.4 ºC and an air temperature of 11.4 ºC.
Lowest Minimum Grass Temperature Depression: 0.5 ºC on 25 May 2019 with a minimum grass temperature of 11.4 ºC and an air temperature of 11.9 ºC.
Monthly mean minimum MSL pressure: 1019.0 hPa (1 hPa higher than same month in 2018). This is the highest on record for May exceeding the previous record high of 1018.2 hPa in 2014.
Monthly mean maximum MSL pressure: 1023.1 hPa (0.2 hPa higher than same month in 2018). This is the highest on record for May exceeding the previous record high of 1022.9 hPa in 2018.
Monthly mean MSL pressure: 1021.1 hPa (2.8 hPa above average, 0.6 hPa higher than same month in 2018). This is the highest on record for May exceeding the previous record high of 1020.5 hPa in 2014.
Lowest MSL pressure: 1011.3 hPa on 27 May 2019 at 3:20 PM. The same month in 2018 saw 1011.5 hPa.
Highest MSL pressure: 1028.6 hPa on 19 May 2019 at 8:44 AM. The same month in 2018 saw 1028 hPa.
Monthly mean minimum relative humidity: 41.7 % (8.8 % lower than same month in 2018 and 13.4 % below average). This is the lowest on record for May exceeding the old record of 47.1 % in 2016.
Monthly mean maximum relative humidity: 85.6 % (6.6 % lower than same month in 2018 and 4.4 % below average). This is second lowest on record for May and the lowest since 80.5 % in 2015.
Monthly mean relative humidity: 63.6 % (7.7 % lower than same month in 2018 and 8.9 % below average). This is the lowest on record for May exceeding the previous record of 67.6 % in 2016.
Lowest relative humidity: 7 % on 31 May 2019 at 2:05 PM (27 % lower than this month in 2018). This is the lowest monthly and daily minimum humidity for May on record exceeding the old record of 26 % on 25 May 2016 at 1:21 PM.
Highest relative humidity: 95 % on 22 May 2019 at 7:47 AM (3 % lower than this month in 2018). This is the second lowest monthly May high humidity on record and the lowest since the current record low of 93 % in 2015 on 1 May at 5:20 PM.
Monthly mean minimum dew point: 7.1 ºC (3.4 ºC below average). This is the lowest monthly mean minimum dew point for May on record exceeding the old record of 9.1 ºC in 2012.
Monthly mean maximum dew point: 14.5 ºC (0.4 ºC above average). This is the lowest monthly mean maximum dew point for May since 13.2 ºC in 2011.
Monthly mean dew point: 10.8 ºC (1.9 ºC below average). This is the lowest monthly mean dew point for May on record exceeding the previous record of 11.8 ºC in 2012.
Lowest dew point: -16.7 ºC on 31 May 2019 at 2:10 PM. This is the lowest monthly dew point for May, exceeding the previous record of 0.3 ºC on 11 May 2018 at 11:50 AM.
Highest dew point: 20.7 ºC on 1 May 2019 at 10:06 AM. This is the second highest monthly maximum dew point on record for May.
Highest wind gust: 52 km/hr on 11 May 2019 at 12:49 AM. This is the lowest May maximum wind gust since 50.4 km/hr in 2017 on the 18 May at 10:20 AM. The maximum wind gust this month last year was 82.9 km/hr.
Highest wind speed: 26 km/hr on 11 May 2019 at 12:52 AM (Moderate Force Wind). This is the lowest monthly maximum wind speed for May since 17.2 km/hr in 2012 on 29 May at 11:50 AM.
Total wind run: 2420 km (1052.4 km higher than same month in 2018), 1373.9 km above average and 56.8 % above average. This is the highest on record for May total wind run exceeding the old record of 1425.3 km in 2015.
Monthly mean wind speed: 3.3 km/hr (2.5 km higher than this month in 2018), 1.9 km/hr above average and 35.7 % above average (approx. 5 % below average accounting for measuring equipment changes). This is the highest on record for May exceeding the old record of 2.4 km/hr in 2017.
Daily mean maximum wind gust: 23.2 km/hr (4.3 km/hr lower than this month in 2018), 1.2 km/hr below average and 4.7 % below average.
Daily mean maximum wind speed: 11.6 km/hr, 3.7 km/hr lower than this month last year, 0.7 km/hr below average and 2.9 % below average. This is the lowest daily mean maximum wind speed on record for May since 8.5 km/hr in 2012.
Dominant direction: S (S this month last year).
Rainfall total: 41.4 mm, 30.8 mm below average (40.9 % of long term average), 5.9 mm below the long term median and 88 % of the long term median. This is lower than this month last year which was 47.3 mm. Automatic rain gauge was 30.4 mm (-9.5 % of manual gauge).
Highest daily rainfall total: 10.3 mm on 5 May 2019. This is the lowest May daily rainfall on record since 8.5 mm on 3 May 2014.
Number of rain days (0.1 mm or greater): 16 days, 7 greater than this month last year and 7.4 days above average.
Highest rain fall rate: 111.8 mm/hr on the 4 May 2019 at 2:11 PM. This is the highest monthly and daily rainfall rate for May exceeding the previous record high of 62.2 mm/hr on 1 May 2015 at 5:00 PM.
Highest hourly rainfall total: 9 mm on the 4 May 2019 at 2:29 PM.
There were 0 thunderstorms, with 1 day with thunder.
Rainfall at Ferny Grove consisted of showers throughout, with generally light falls.
There was 13 days of morning dew.
High pressure ridge pattern brought onshore winds and showers during much of the month.
For May there were 13 existing records exceeded, along with 3 records that were highest/lowest in at least 5 years.
For more detailed analysis refer to the Monthly Meteorological Report for May 2019.
Summary of Averages and Extremes for May 2019 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 |
Average |
13.1 |
24.7 |
18.9 |
11.6 |
11.6 |
-1.5 |
41.7 |
85.6 |
63.6 |
1019.0 |
1023.1 |
1021.1 |
10.8 |
23.2 |
11.6 |
1.3 |
Min |
4.4 |
20.6 |
12.5 |
4.3 |
1.8 |
-3.0 |
7 |
51 |
37 |
1011.3 |
1016.5 |
1013.9 |
1.9 |
12.0 |
6.0 |
|
Max |
19.4 |
28.0 |
22.7 |
17.8 |
18.0 |
-0.5 |
75 |
95 |
85 |
1025.3 |
1028.6 |
1026.9 |
20.7 |
52.0 |
26.0 |
10.3 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
41.4 |
Summary for May 2019 from long term average for Ferny Grove, Brisbane, Queensland, Australia |
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|
Temperature |
Relative Humidity |
MSL Pressure |
Dew Point |
Wind Gust |
Wind Speed |
Rainfall |
Rainfall as Fraction of monthly average (%) |
Average |
+1.0 |
-8.9 |
+2.8 |
-1.9 |
-0.3 |
-3.7 |
-61.6 |
40.2 |
Min |
+0.7 |
-13.4 |
|
-3.4 |
|
|
|
|
Max |
+1.4 |
-4.4 |
|
-0.4 |
|
|
-1.3 |
|
Monthly averages and extremes for Year of 2019 to Date for Ferny Grove, Brisbane, Queensland, Australia |
|
|
|||||||||
|
Temperature |
Temperature Anomaly from Long Term Avg. |
Rain total |
Rain Anomaly |
Rain days |
||||||
|
Avg Min |
Avg Max |
Low Min |
High Max |
Average |
Min |
Max |
Average |
|
|
|
Jan-19 |
20.8 |
32.0 |
18.5 |
34.3 |
26.4 |
-0.0 |
+1.2 |
+0.6 |
10.4 |
-134.6 |
9 |
Feb-19 |
20.9 |
31.2 |
16.8 |
36.7 |
26.0 |
+0.7 |
+1.1 |
+0.9 |
39.8 |
-122.0 |
13 |
Mar-19 |
20.4 |
31.4 |
14.1 |
41.1 |
25.9 |
+1.7 |
+3.0 |
+2.3 |
236.9 |
+112.7 |
18 |
Apr-19 |
16.4 |
26.7 |
14.1 |
30.5 |
21.6 |
+0.4 |
-0.1 |
+0.1 |
64.9 |
-30.8 |
16 |
May-19 |
13.1 |
24.7 |
4.4 |
28.0 |
18.9 |
+0.7 |
+1.4 |
+1.0 |
41.4 |
-61.6 |
16 |
YTD |
18.3 |
29.2 |
4.4 |
41.1 |
23.8 |
+0.7 |
+1.3 |
+1.0 |
393.4 |
-236.3 |
72 |
Data copyright Ferny Grove Weather 2019, Produced 1/8/2019. 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. Data measured with low accuracy equipment, mostly replaced with professional moderate accuracy equipment from October 5 except for daily rainfall which is measured using non-professional equipment with 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 usually 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 the automatic record became the official record instead, simplifying this process. Until replaced on 5 October 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. 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. Long term average for rainfall is based on 1987 to 2017 average from the station record, while 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.