Overnight temperatures were near average and daytime temperatures were well above average in spring at Ferny Grove. Rainfall totals at most of the official sites were well below average and record low at many sites. Mean relative humidity was well below average, mean air pressure was above average, mean dew point was below average and wind speed above near average. There were 11 thunderstorms.
Seasonal mean minimum temperature: 14.8 ºC, 0.1 ºC above average and 0.1 ºC higher than the same season in 2018.
Seasonal mean maximum temperature: 29.4 ºC, 2.3 ºC above average and 1.9 ºC higher than in 2018. This is the second highest on record and the highest since the current record high of 30.1 ºC in 2009.
Seasonal mean temperature: 22.1 ºC, 1.2 ºC above average and 0.8 ºC higher than same season in 2018. This is the second highest on record and the highest since the current record high of 22.9 ºC in 2009.
Lowest temperature: 6.9 ºC on 12 September 2019 at 6:10 AM. Same month in 2018 was 7.2 ºC and same season in 2018 was 6.9 ºC.
Highest temperature: 40.3 ºC on 8 November 2019 at 1:23 PM. Same month and season in 2018 was 37.2 ºC. For spring this is the highest seasonal maximum temperature on record, exceeding the previous record high of 39.6 ºC in spring 2014 on 16 November at 2:10 PM.
Lowest maximum temperature: 21.3 ºC at 2:52 PM on 12 October 2019. This month in 2018 was 18.6 ºC and this season in 2018 was 18.6 ºC. For spring this is the highest seasonal lowest maximum temperature since 21.6 ºC in 2014 on 7 September at 1:41 PM.
Highest minimum temperature: 22.9 ºC on 28 November 2019 at 7:50 AM. This month in 2018 was 22.6 ºC and this season in 2018 was 24.0 ºC.
Minimum temperatures were generally below average over the first half of the September except for some warmer nights in the second week of the month. Most nights in the second half of the month were above average. The month started with a cool period of 2 ºC to 5 ºC below average. It was warmer at 4 ºC above average on the 7th. Cooler conditions followed being 2 to 5 ºC below average between the 10th and 14th. After near average temperatures from the 20th minimum temperatures were between 3 and 5 ºC above average but was 1 ºC to 2 ºC above average on the 23rd, 27th and 29th.
Minimum temperatures saw several periods of cool nights especially in the first half of the month with several warm periods throughout the October. The month started warm at 3 ºC above average on the 1st and a cool period followed between the 3rd and 5th being 4 to 6 ºC below average. The 8th and 9th was 2 ºC and 4 ºC above average respectively before another cool period followed on the 10th to 14th. During this period temperatures were 4 to 5 ºC below average on the 12th and 13th and 2 to 3 ºC below average on the 10th, 11th and 14th. From the 5th temperatures were within 2 ºC of the long term average. The 24th and 25th was 3 ºC below average. The 27th was equal to the average before warming to 3 ºC to 4 ºC above average on the 28th and 29th.
Minimum temperatures in November were mostly near or below average and there were some above average temperatures later in the month. The month started with below average temperatures of 2 ºC to 3 ºC below average on the 1st to 3rd. It cooled again to 6 ºC to 7 ºC below average on the 6th to 8th, before warming to 4 ºC above average on 9th and cooled to 7 ºC below average on the 10th. On the 11th to 13th it was 2 ºC to 3 ºC below average. The 21st was 4 ºC above average before near average temperatures between the 22nd and 27th. It was 4 ºC below average on the 28th, and 2 ºC above average on the 29th and 30th.
Maximum temperatures during September were predominately above average with a few days close to average and a cool period in the second week of the month. The first 6 days of the month saw mostly above average temperatures of up to 9 ºC above average (on the 4th). Temperatures were 2 to 3 ºC below average on the 9th and 10th. Following mostly close to average temperatures maximum temperatures warmed to 5 ºC above average on the 13th and 14th and 4 ºC above average on the 16th and 17th. Cooler conditions followed with the 27th being 6 ºC above average before near average temperatures returned. Except for the 29th temperatures were 3 ºC to 7 ºC above average on the 27th to 30th.
Maximum temperatures in October were generally above average with some cool periods throughout the month. The month started with the first 2 days being 2 to 3 ºC below average. A warm period followed between the 4th and 8th and was 5 ºC on the 5th and 7 ºC on the 7th and 8th when the highest temperature of the month occurred. Cooler temperatures of 2 to 6 ºC below average followed on the 9th to 12th. A warm period followed on the 16th which was 4 ºC above average and 6 ºC above average on the 17th. After cooler temperatures it then warmed to 2 ºC to 3 ºC above average on the 26th and to 28th, easing to 3 ºC below average on the 30th.
Maximum temperatures during November were predominately above average with several days that were well above average. The month started being 4 ºC below average on the 1st, before easing to close to average on the 2nd and 3rd. The 4th was 5 ºC above average, 1 ºC to 2 ºC on the 5th and 6th, increasing to 6 ºC above average on the 7th to the highest temperature for the month on the 8th that was 11 ºC below average. The 9th and 10th was 3 ºC to 5 ºC above average, easing to 1 ºC below average on the 11th, before increasing to 4 ºC above average on the 12th, 7 ºC above average on the 13th, and easing to 2 ºC above average on the 14th. The warmth continued being 4 ºC to 7 ºC above average on the 15th to 17th. After cooler weather the 19th was 4 ºC above average, 6 ºC above average on the 20th and reducing to 1 ºC to 2 ºC above average on the 21st to 23rd. The 23rd to 26th was 2 ºC to 3 ºC above average, 4 ºC above average on the 27th, easing to 1 ºC below average on the 28th, 3 ºC above average on the 29th and 6 ºC above average on the 30th.
Seasonal Average Minimum Grass Temperature: 12.8 ºC (0.4 ºC lower than same season in 2018)
Lowest Seasonal Minimum Grass Temperature: 4.9 ºC on 12 September 2019 (2.1 ºC higher than same month in 2018). This coincided with the lowest minimum temperature of 6.9 ºC for the month.
Highest Seasonal Minimum Grass Temperature: 21.9 ºC on 28 November 2019 (0.9 ºC higher than same month in 2018). This coincided with the highest minimum temperature of 22.9 ºC for the month.
Highest Minimum Grass Temperature Depression: 4.9 ºC on 9 November 2019 with a minimum grass temperature of 17.4 ºC and an air temperature of 22.3 ºC.
Lowest Minimum Grass Temperature Depression: 0.9 ºC on 25 September 2019 with a minimum grass temperature of 16.2 ºC and an air temperature of 17.1 ºC.
Seasonal Mean Minimum Pressure: 1014.6 hPa (0.8 hPa higher than same season in 2018).
Seasonal Mean Maximum Pressure: 1020.2 hPa (0.9 hPa higher than same season in 2018).
Seasonal Mean Pressure: 1017.4 hPa (1.0 hPa above average) and 0.9 hPa higher than same season in 2018.
Lowest Seasonal MSL Pressure: 1001.3 hPa on 8 November 2019 at 4:07 PM. The same month and season in 2018 saw 995 hPa.
Seasonal Highest MSL Pressure: 1030 hPa on 2 October 2019 at 8:52 AM. The same month in 2018 saw 1027.9 hPa and the same season in 2018 saw 1028.5 hPa.
Seasonal Mean Minimum Relative Humidity: 27.9 % (18.5 % lower than same season in 2018 and 9.1 % below average). This is the lowest on record for spring exceeding the previous record of 33.3 % in 2009.
Seasonal Mean Maximum Relative Humidity: 27.9 % (18.5 % lower than same season in 2018 and 9.1 % below average). This is the lowest on record for spring exceeding the previous record of 33.3 % in 2009.
Seasonal Mean Relative Humidity: 53.5% (6.5 % lower than same season in 2018 and 10.5 % below average). This is lowest on record beating the previous record of 57.4 % in 2009.
Lowest Seasonal Humidity: 1 % on 10 November 2019 at 12:28 PM (9 % lower than this month in 2018). This is the lowest monthly and daily minimum humidity for November and spring on record exceeding the old record of 10 % on 24 November 2018 at 2:44 PM.
Seasonal Highest Humidity: 93 % on 20 October 2019 at 6:59 AM (6 % lower than this month in 2018). This is the lowest monthly October maximum humidity on record exceeding the previous record low of 94 % in 2016 on 3 October at 5:33 PM. For spring this is the lowest seasonal and daily maximum relative humidity on record exceeding the previous record low of 98 % in 2014 on 20 November at 5:50 AM.
Seasonal mean minimum dew point: 3.5 ºC (5.4 ºC below average). This is the lowest seasonal mean minimum dew point on record for spring, exceeding the previous record low of 11.2 ºC in 2012.
Seasonal mean maximum dew point: 14.4 ºC (0.7 ºC below average). This is the second lowest seasonal mean maximum dew point on record for spring and the lowest since the current record low of 11.8 ºC in 2009.
Seasonal mean dew point: 9 ºC (3 ºC below average). This is the lowest seasonal mean dew point on record for spring, exceeding the previous record low of 11.9 ºC in 2009.
Lowest dew point: -31.9 ºC on 8 November 2019 at 9:01 PM. This is the lowest monthly and daily dew point for November and spring on record, exceeding the previous record of -4.1 ºC on 24 November 2018 at 2:24 PM.
Highest dew point: 21.2 ºC on 8 October 2019 at 9:16 AM. For spring this is the second lowest seasonal maximum dew point on record and the lowest since the current record low of 20.2 ºC in 2009 on the 19 November.
Maximum Wind Gust: 64 km/hr on 5 November 2019 at 11:46 AM. The maximum wind gust this month in 2018 was 79.1 km/hr and this season in 2018 was 68.7 km/hr. For spring this is the lowest maximum seasonal wind gust since 58.3 km/hr in 2013 on 25 October at 8:43 AM.
Maximum Wind Speed: 33 km/hr on 5 November 2019 at 1:45 PM (Fresh Force Wind). This season in 2018 was 45.7 km/hr. For spring this is the lowest seasonal maximum wind speed exceeding the previous record low of 34.2 km/hr in 2015 on the 29 November at 1:25 PM.
Seasonal Wind Run: 12729.2 km (6188.6 km higher than same season in 2018). This is the highest on record exceeding the old record in 2018 of 6540.6 km. This is 5412.4 km above average and 73.4 % above average.
Seasonal Mean Wind Speed: 5.9 km/hr (2.9 km/hr higher than this season in 2018, 1.9 km/hr above average and 48.7 % above average) and the highest on record, with the old record being 3 km/hr in 2018.
Daily Mean Maximum Wind Gust: 30.6 km/hr (0.6 km higher than this season in 2018), 5.6 km/hr above average and 22.4 % above average. This is the fifth highest daily mean maximum wind gust for spring on record and the highest since 36.2 km/hr in 2017.
Daily Mean Maximum Wind Speed: 16.2 km/hr, 1.8 km/hr higher than this season last year, 5.8 km/hr above average and 35.8 % above average. This is the third lowest daily mean maximum wind speed on record for spring and the highest since 18.9 km/hr in 2017.
Dominant Direction: NE (NE this season in 2018).
Rainfall total: 65.5 mm, 128mm below average (33.9 % of long term average), 109.5 mm below the long term median and 37.4 % of the site median. This ranks as decile 1/ 9th percentile and as very low. This is lower than this season in 2018 which was 323.3 mm. Automatic rain gauge was 58.6 mm (-10.5 % of manual gauge).
Highest daily rainfall total: 26.7 mm on 12 October 2019. For spring this is the lowest daily rainfall total on record since 26.5 mm in 2014 on the 20 November.
Number of rain days (0.1 mm or greater): 4 days, 2 less than this month in 2018 and 4.4 days below average. This is the equal lowest on record for November and is the equal lowest since 4 days in 2011.
Highest rainfall rate was 140.4 mm/hr on the 19 October 2019 at 11:49 AM. This is the lowest since 68.4 mm/hr in 2017 on 23 October at 4:30 PM.
Highest hourly rainfall was 7.2 mm on the 11 October 2019 at 9:12 PM.
There was 11 thunderstorm, with 10 days with thunder, along with 2 nearby thunderstorm.
Very little rainfall observed at Ferny Grove during the September with some light showers bringing low rainfall totals in the second half of the month.
During October most rainfall totals at Ferny Grove were low and brought by brief thunderstorms (some were high-based) or light showers. No rainfall observed after the 20th of the month.
Most of the rainfall in November at Ferny Grove was from showers for the first few days of the month. In the middle of the month and end of the month were some thunderstorms with very little rainfall.
There were 8 days of morning dew.
Smoke haze over much of the month was a result of many bushfires across the region in dangerous conditions which resulted in the loss of several properties across tens of thousands of hectares.
Several days of record low humidity and high temperatures in stable and dry conditions.
For September there were 13 existing records exceeded, along with 4 records that was highest/lowest in at least 5 years.
There were 8 days of morning dew.
Smoke haze on some days caused by continued dangerous bushfire conditions across the region
Above average air pressure was a result of persistent a high pressure ridge in between the passage of trough with dry air masses with low levels of moisture.
After a dry 12 month period long term rainfall totals are now in the lowest 10% of records.
For September there were 7 existing records exceeded, along with 8 records that was highest/lowest in at least 5 years.
There were 0 days of morning dew.
Smoke haze was observed on 16 days caused by continued bushfire weather conditions across the region
A stagnant weather pattern with resulting lower than normal air pressure as a result of persistent low pressure troughs with very dry air produced cool nights, hot days and very little rainfall
Long period rainfall totals of between 6 and 18 months exhibited very large negative anomalies compared to the long term average. Many of these records through to November are in the lowest 10% of records.
For November there were 13 existing records exceeded or equalled, along with 7 records that was highest/lowest in at least 5 years.
Summary of Averages and Extremes for spring 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 |
September |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
12.1 |
28.2 |
20.2 |
16.1 |
9.6 |
2.4 |
21.5 |
77.1 |
49.3 |
1017.0 |
1022.5 |
1019.8 |
4.7 |
29.9 |
16.3 |
0.1 |
Min |
6.9 |
23.4 |
15.6 |
8.2 |
4.9 |
0.9 |
1 |
24 |
14.5 |
1006.8 |
1014.6 |
1010.7 |
-30.9 |
19.0 |
9.0 |
|
Max |
17.1 |
35.3 |
24.9 |
25.8 |
16.2 |
4.2 |
43 |
92 |
65.5 |
1025.0 |
1029.5 |
1027.3 |
17.6 |
54.0 |
27.0 |
2.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
2.8 |
October |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
14.6 |
27.9 |
21.2 |
13.3 |
13.0 |
1.6 |
34.6 |
82.7 |
58.7 |
1015.8 |
1021.2 |
1018.5 |
11.8 |
28.8 |
14.4 |
1.6 |
Min |
9.2 |
21.3 |
16.6 |
6.4 |
7.8 |
0.3 |
13 |
67 |
50.0 |
1006.5 |
1014.1 |
1010.3 |
-1.3 |
19.0 |
9.0 |
|
Max |
19.6 |
34.7 |
27.2 |
21.0 |
18.3 |
3.1 |
64 |
93 |
77.5 |
1026.5 |
1030.0 |
1028.2 |
21.2 |
46.0 |
23.0 |
26.7 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
48.5 |
November |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
17.6 |
32.1 |
24.8 |
14.5 |
15.8 |
1.8 |
27.6 |
77.7 |
52.7 |
1010.9 |
1016.8 |
1013.9 |
10.5 |
33.2 |
17.9 |
0.5 |
Min |
11.4 |
24.8 |
20.3 |
5.7 |
8.9 |
0.8 |
1 |
62 |
31.5 |
1001.3 |
1009.4 |
1005.3 |
-31.9 |
23.0 |
12.0 |
|
Max |
22.9 |
40.3 |
27.7 |
27.5 |
21.9 |
4.9 |
53 |
92 |
69.0 |
1018.5 |
1021.6 |
1020.0 |
20.8 |
64.0 |
33.0 |
6.7 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14.2 |
Season |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
14.8 |
29.4 |
22.1 |
14.6 |
12.8 |
1.9 |
27.9 |
79.2 |
53.5 |
1014.6 |
1020.2 |
1017.4 |
9.0 |
30.6 |
16.2 |
0.7 |
Min |
6.9 |
21.3 |
15.6 |
5.7 |
4.9 |
0.9 |
1 |
24 |
14.5 |
1001.3 |
1009.4 |
1005.3 |
-31.9 |
19.0 |
9.0 |
|
Max |
22.9 |
40.3 |
27.7 |
27.5 |
21.9 |
3.1 |
64 |
93 |
77.5 |
1026.5 |
1030.0 |
1028.2 |
21.2 |
64.0 |
33.0 |
26.7 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
65.5 |
Summary for spring 2019 from long term average for Ferny Grove, Brisbane, Queensland, Australia |
||||||||
|
Temperature |
Relative Humidity |
MSL Pressure |
Dew Point |
Wind Gust |
Wind Speed |
Rainfall |
Rainfall as Fraction of monthly average (%) |
September |
|
|
|
|
|
|
|
|
Average |
+1.6 |
-10.1 |
+2.2 |
-4.6 |
+4.8 |
+5.8 |
-30.4 |
8.4 |
Min |
+0.2 |
-12.7 |
|
-8.4 |
|
|
|
|
Max |
+2.9 |
-7.5 |
|
-0.8 |
|
|
-13.7 |
|
October |
|
|
|
|
|
|
|
|
Average |
+0.7 |
-3.5 |
+1.8 |
-0.5 |
+4.2 |
+4.2 |
-16.0 |
75.2 |
Min |
+0.1 |
-4.3 |
|
-0.7 |
|
|
|
|
Max |
+1.2 |
-2.7 |
|
-0.3 |
|
|
+21.7 |
|
November |
|
|
|
|
|
|
|
|
Average |
+1.4 |
-7.7 |
-1.2 |
-4.0 |
+7.9 |
+7.4 |
-81.7 |
14.8 |
Min |
+0.0 |
-10.4 |
|
-7.1 |
|
|
|
|
Max |
+2.9 |
-5.0 |
|
-1.0 |
|
|
-20.5 |
|
Season |
|
|
|
|
|
|
|
|
Average |
1.2 |
-7.1 |
1.0 |
-3.0 |
+5.6 |
+5.8 |
-128.0 |
33.9 |
Min |
0.1 |
-9.1 |
- |
-5.4 |
- |
- |
- |
- |
Max |
2.3 |
-5.1 |
- |
-0.7 |
- |
- |
- |
- |
Monthly averages and extremes for spring 2019 to Date for Ferny Grove, Brisbane, Queensland, Australia |
|||||||||||
|
Temperature |
Temperature from Long Term Avg. |
Rain total |
Rain Anomaly |
Rain days |
||||||
|
Avg Min |
Avg Max |
Low Min |
High Max |
Average |
Min |
Max |
Average |
|
|
|
Sep-19 |
12.1 |
28.2 |
6.9 |
35.3 |
20.2 |
-0.7 |
+2.9 |
+1.1 |
2.8 |
-30.4 |
3 |
Oct-19 |
14.6 |
27.9 |
9.2 |
34.7 |
21.2 |
-0.8 |
+1.2 |
+0.2 |
48.1 |
-16.4 |
8 |
Nov-19 |
17.6 |
32.1 |
11.4 |
40.3 |
24.8 |
-0.9 |
+2.9 |
+1.0 |
14.2 |
-81.7 |
4 |
Season |
14.8 |
29.4 |
4.4 |
41.1 |
22.1 |
-0.8 |
+2.3 |
+0.8 |
65.1 |
-128.4 |
15 |
Data copyright Ferny Grove Weather 2019, Produced 13/10/2019. 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 effective October 5 this is the 24 hours from midnight. 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. This is same to the official time standards and measured in degrees C. Rainfall is measured over 24 hours to 9am and recorded on that day. This is the same as the official time standard and measured in millimetres. Some rainfall measurements are not made at 9am and is adjusted based on the automatic record. Minimum Grass Temperature is measured over an approx. 12 hour period ending in the early morning. MSL refers to Mean Sea Level, which is the standard meteorological method of measuring air pressure reduced to sea level based on both elevation and temperature. Grass Minimum Depression is the difference of the grass minimum temperature from the air temperatures and is a positive value when the grass temperature is below the air temperature.
Dew Point, Average Wind Speed, Dominant Wind Direction, Wind Run, Rain Rate and Hourly Rain are measured automatically over a 24 hour period starting at midnight and recorded for that day. This started on the 6 October 2011. Until replaced from 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. However the automatic record for some data may be used if data is not available/ not suitable.
Long term averages are based on all available long period past measurements. Long term average for Temperature, Relative Humidity and Air pressure is based on 2009 to 2015 average from the station record and wind speed is based on the 2010 to 2018 average from station record. Long term average for rainfall is based on 1987 to 2017 average from the station record. The Fraction of monthly average expresses how much has fallen in respect to the long term average listed as a percentage.