At Ferny Grove, overnight and daytime temperatures were close to average. Rainfall was well below average and was the lowest on record for November. Mean relative humidity was near average, mean dew point was close to average and mean air pressure was above average. There were 0 thunderstorms (2 thunder days).
Monthly mean daily minimum temperature: 17 ºC, 0.5 ºC below average and 0.6 ºC lower than same month in 2019.
Monthly mean daily maximum temperature: 29.7 ºC, 0.4 ºC above average and 2.4 ºC lower than same month in 2019.
Monthly mean temperature: 23.4 ºC, 0.1 ºC below average, 1.4 ºC lower than the same month in 2019.
Lowest temperature: 12.8 ºC on 10 November 2020 at 4:45 AM. Same month in 2019 was 11.4 ºC. This is the highest monthly minimum temperature since 13.9 ºC in 2015 on 18 November at 4:40 AM.
Highest temperature: 35.3 ºC on 17 November 2020 at 10:24 AM. The same month in 2019 was 40.3 ºC.
Lowest daily maximum temperature: 22.6 ºC on 8 November 2020 at 11:12 AM. Same month in 2019 was 24.8 ºC.
Highest daily minimum temperature: 21.9 ºC on 25 November 2020 at 1:12 AM. Same month in 2019 was 22.9 ºC.
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.
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 an 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.
Monthly Mean Minimum Grass Temperature: 14.7 ºC (1.2 ºC lower than same month in 2019).
Lowest Minimum Grass Temperature: 9.8 ºC on 6 November 2020 (0.9 ºC higher than same month in 2019).
Highest 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.
Monthly mean daily minimum MSL pressure: 1013.4 hPa (2.5 hPa higher than same month in 2019).
Monthly mean daily maximum MSL pressure: 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.
Mean MSL pressure: 1016.2 hPa (1.4 hPa below average, 2.3 hPa higher than same month in 2019).
Lowest MSL pressure: 1003.3 hPa on 5 November 2020 at 3:22 PM. The same month in 2019 saw 1006.5 hPa.
Highest MSL pressure: 1025.5 hPa on 9 November 2020 at 9:22 PM. The same month in 2019 saw 1030 hPa.
Monthly mean daily minimum relative humidity: 44.7 % (11.1 % higher than same month in 2019 and 1.9 % below average).
Monthly mean daily maximum relative humidity: 93.7 % (6 % higher than same month in 2019 and 2.1 % above average).
Mean relative humidity: 67.2 % (8.5 % higher than same month in 2019 and 0.1 % above average).
Lowest relative humidity: 23 % on 1 November 2020 at 3:07 PM (16% higher than this month in 2019).
Highest relative humidity: 96 % on 15 November 2020 at 2:01 AM (2 % lower than this month in 2019).
Monthly mean daily minimum dew point: 13.8 ºC (0.8 ºC below average).
Monthly mean daily maximum dew point: 19.3 ºC (0.1 ºC above average).
Monthly mean dew point: 16.6 ºC (0.4 ºC below average).
Lowest dew point: 5.2 ºC on 6 November 2020 at 7:32 AM.
Highest dew point: 24.1 ºC on 16 November 2020 at 1:24 AM.
Highest wind gust: 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.
Highest wind speed: 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.
Total Wind Run: 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.
Mean wind speed: 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: 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: 14.4 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 month last year).
Rainfall total: 4.7 mm, 91.2 mm below average (4.9 % of long term average), 70.1 mm below the long term median and 5.7 % of the site 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. Automatic rain gauge was 4.4 mm (-6.4 % of manual gauge).
Highest daily rainfall total: 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.
Number of rain days: 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.
The year to date total is 989.6 mm (36.3 mm above average and 3.8 % above average).
Highest rainfall rate: 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 and the lowest since the current record low of 9.6 mm/hr in 2011 on 26 November at 6:40 PM.
Highest hourly rainfall total: 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.
Most rainfall in the month 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.
There were 1 day of morning dew.
Smoke haze on 15th to 19th and 23rd to 24th.
An SSE to ESE wind change in the evening of the 1st, a WNW to WSW winds in the evening of the 5th, a ESE to SE wind change in the late afternoon of the 17th and a wind change in the late afternoon of the 24th.
The minimum temperature was reached very early in the day on the 9th and 27th.
Warm in the evening of the 5th following a wind change.
Cold during the 8th under cloud cover while the temperature rose quite slowly during the day.
A warm evening after a warm day on the 16th.
Warm from early on the 17th with a hot day before becoming cool in the mid-afternoon before a wind change in the late afternoon.
Sunny or mostly sunny from the 20th except for cloudy skies on the 24th and 25th.
Warm early in the day, in the morning and in the evening of the 25th.
High pressure systems brought stable conditions or onshore winds throughout the month. Rainfall was suppressed during the month additionally by upper-level ridging.
Most long period rainfall totals continue to remain well below average, that improved for some of these periods. 6 monthly rainfall improved slightly to 58 mm below average, while 9 monthly rainfall reduced significantly from 97.2 mm in the previous month to 205.9 mm below average. 12 month rainfall remained nearly the same as the previous month at 3.4 mm above average. 18 month to 48-month rainfall was between 140.7 mm below average for 48 month rainfall and 384 mm below average for 24 month rainfall. 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.
For November there were 6 existing records exceeded or equalled, along with 3 records that was highest/lowest in at least 5 years.
For more detailed analysis refer to the “Monthly Meteorological Report for November 2020”
Summary of Averages and Extremes for November 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 |
Average |
17.0 |
29.7 |
23.4 |
12.6 |
14.7 |
2.4 |
44.7 |
89.7 |
67.2 |
1013.4 |
1019.0 |
1016.2 |
16.6 |
26.2 |
14.1 |
0.2 |
Min |
12.8 |
22.6 |
19.3 |
4.8 |
9.8 |
0.6 |
23 |
70 |
51 |
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 |
76 |
1021.5 |
1025.5 |
1023.4 |
24.1 |
35.0 |
22.0 |
4.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4.7 |
Summary for November 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 monthly average (%) |
Average |
-0.1 |
+0.1 |
+1.6 |
-0.4 |
+0.9 |
+3.7 |
-91.2 |
4.9 |
Min |
-0.5 |
-1.9 |
|
-0.8 |
|
|
|
|
Max |
+0.4 |
+2.1 |
|
+0.1 |
|
|
-30.0 |
|
Monthly averages and extremes for Year of 2020 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-20 |
21.9 |
32.2 |
18.6 |
35.4 |
27.0 |
+1.2 |
+1.5 |
+1.4 |
183.3 |
+38.3 |
15 |
Feb-20 |
21.2 |
30.4 |
19.6 |
37.6 |
25.8 |
+0.9 |
+0.4 |
+0.7 |
389.2 |
+227.4 |
20 |
Mar-20 |
18.7 |
29.1 |
15.1 |
35.2 |
23.9 |
-0.5 |
+0.4 |
-0.0 |
142.4 |
+18.2 |
15 |
Apr-20 |
16.0 |
29.1 |
11.9 |
34.2 |
22.6 |
+0.0 |
+2.7 |
+1.4 |
13.5 |
-80.3 |
9 |
May-20 |
12.7 |
24.2 |
9.1 |
28.1 |
18.4 |
+0.2 |
-0.0 |
+0.6 |
12.1 |
-90.9 |
8 |
Jun-20 |
11.0 |
22.6 |
5.9 |
25.8 |
16.8 |
+0.6 |
+1.2 |
+0.9 |
45.5 |
-16.4 |
13 |
Jul-20 |
10.0 |
22.2 |
5.0 |
26.1 |
16.1 |
+1.1 |
+0.4 |
+1.2 |
50.4 |
+16.9 |
8 |
Aug-20 |
10.1 |
24.0 |
4.2 |
27.9 |
17.0 |
+1.2 |
+1.3 |
+1.2 |
14.8 |
-21.7 |
3 |
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 |
YTD |
15.2 |
27.0 |
4.2 |
37.6 |
21.1 |
+0.5 |
+0.9 |
+0.8 |
989.6 |
+36.3 |
110 |
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 2020, Produced 24/01/21. 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”.