Brisbane, Queensland, Australia, Latitude 27°S 23' 52", Longitude 152° E 55' 35", Elevation 76 m
Tue 30 May 2023 12:15:22 pm: Temperature: 21.9 °C, Humidity: 42 %, Wind speed: 4 km/h, Wind Gust: 8 km/h, Rain today: 0.0 mm, MSLP: 1023.2 hPa
Website under continual development from 11 years of weather data. Please contact us if you find issues or like to provide feedback.
Data updating resolved outages: Data on this website did not update for 6 hours between 1:30 pm and 8:40 pm on Monday 10 April 2023 during an unplanned outage caused by the Network Service Provider that appears to have been resolved. The missing data has now been populated from our developmental system which continued to run. Apologies for any inconvenience this may cause.
At Ferny Grove in spring overnight temperatures were close to average but was the highest in 11 years. Daytime temperatures were above average. Rainfall was close to average at Ferny Grove (79.1 % of the long-term median), but was the lowest on record in November. Mean relative humidity and mean dew point was close to average, mean air pressure was near average and wind speed was above average. There were 6 thunderstorms, with 10 thunder days.
Seasonal mean minimum temperature: 15.1 ºC, 0.4 ºC above average and 0.3 ºC higher than the same season in 2019. This is the highest seasonal mean minimum temperature on record for spring since the current record high of 15.6 ºC in 2010.
Seasonal mean maximum temperature: 27.8 ºC, 0.6 ºC above average and 1.6 ºC lower than the same season in 2019.
Seasonal mean temperature: 21.4 ºC, 0.5 ºC above average and 0.7 ºC lower than same season in 2019.
Lowest temperature: 8 ºC on 27 September 2020 at 5:56 AM. Same month and season in 2019 was 6.9 ºC. For spring this is the equal second highest seasonal minimum temperature on record and the highest since the current record high of 8.7 ºC in 2013 on 6 September at 6:20 AM.
Highest temperature: 35.3 ºC on 17 November 2020 at 10:24 AM. The same month and season in 2019 was 40.3 ºC. For spring this is the lowest seasonal maximum temperature on record since 34.4 ºC in 2011 on 15 November at 2:21 PM.
Lowest maximum temperature: 20.4 ºC on 10 September 2020 at 1:08 PM. Same month in 2019 was 23.4 ºC and this season in 2019 was 21.3 ºC.
Highest minimum temperature: 21.9 ºC on 25 November 2020 at 1:12 AM. Same month in 2019 was 22.9 ºC and this season in 2019 was 22.9 ºC.
Minimum September temperatures were predominately above average with a low number of cool nights that mostly occurred in the last few days of the month. The 3rd to 7th was a warm period of between 1 ºC and 3 ºC above average. The 18th to 24th was another period of warm nights of at least 2 ºC above average and peaked at 6 ºC to 9 ºC on the 22nd to 24th. The last few nights of the month were below average of 1 ºC to 4 ºC below average.
Minimum temperatures in October were near or below average in the first half of the month before warm nights during most of the second half of the month. During the first half of the month until the 21st the coolest nights were on 1st and 10th at 3 ºC below average, and otherwise within 2 ºC of the long term average. An 8 day warm period between the 22nd and 29th of up to 6 ºC above average on the 25th. The 30th was 2 ºC below average and 4 ºC above average on the 31st.
November minimum temperatures were near average or below average in the first half of the month and then warm nights during the rest of the month with some cool nights. Cool nights early in the month were 2 ºC to 5 ºC below average on the 1st, 3rd to 6th, and 9th to 11th. After near average temperature during the middle of the month a warm period of 2 ºC to 4 ºC above average occurred on the 15th to 19th. The 20th was 2 ºC below average, which after some near average nights it was 4 ºC above average on the 24th to 25th. In the last few days of the month temperatures were mostly near average.
September maximum temperature saw a mixture of below and above average temperatures. Cool days on the 6th and the 13th of between 1 and 5 ºC below average before mixed temperature observed during the middle of the month. The days warmed between the 20th and 25th that rose to 5 ºC above average on the 24th and 3 ºC above average on the 25th. Late in the month were temperatures that were close to average or slightly below average.
October maximum temperatures were above average throughout the month with very few cool days and several days close to average, mostly in the first half of the month. The first 13 days of the month saw near average temperatures except for the 9th being 5 ºC above average. The 14th was 3 ºC below average before several days during the second half of the month that were above average of up to 6 ºC above average on the 31st. The 19th, 22nd and 27th was however 3 ºC below average.
November maximum temperature were mostly below average in the first half of the month before most days were warm during the rest of the month. The 1st was 3 ºC below average, which after easing to near average and was 3 ºC above average on the 5th and 8 day cool period followed until the 13th that peaked at 7 ºC below average on the 8th and gradually eased to 1 ºC below average in the 12th and 13th. Warm days followed of 2 ºC to 4 ºC above average on the 14th to 16th, rising to 6 ºC above average on the 17th. Another warm period on the 21st to 24th of 2 ºC to 5 ºC above average. The month ended with temperatures within 2 ºC of the long term average but was 5 ºC above average on the 29th.
Seasonal Average Minimum Grass Temperature: 12.9 ºC (0.1 ºC higher than same season in 2019)
Lowest Seasonal Minimum Grass Temperature: 4.6 ºC on 27 September 2020 (0.7 ºC lower than same month in 2019). This coincided with the lowest minimum air temperature of 8 ºC for the month.
Highest Seasonal Minimum Grass Temperature: 20.7 ºC on 25 November 2020 (1.2 ºC lower than same month in 2019). This coincided with the highest minimum air temperature of 21.9 ºC for the month.
Highest Minimum Grass Temperature Depression: 3.9 ºC on 6 November 2020 with a minimum grass temperature of 9.8 ºC and an air temperature of 13.7 ºC.
Lowest Minimum Grass Temperature Depression: 0.6 ºC on 27 November 2020 with a minimum grass temperature of 18.6 ºC and an air temperature of 18 ºC.
Seasonal Mean Minimum Pressure: 1015.5 hPa (0.9 hPa higher than same season in 2019). This is the highest on record for spring since 1016.5 hPa in 2015.
Seasonal Mean Maximum Pressure: 1020.6 hPa (0.4 hPa higher than same season in 2019). This is the second highest on record for spring and the highest since the current record high of 1021.8 hPa in 2015.
Seasonal Mean Pressure: 1018.1 hPa (1.3 hPa above average) and 0.7 hPa higher than same season in 2019. This is the second highest on record for spring and the highest since the current record high of 1019.2 hPa in 2015.
Lowest Seasonal MSL Pressure: 1003.3 hPa on 5 November 2020 at 3:22 PM. The same month in 2019 saw 1006.5 hPa and the same season in 2019 saw 1001.3 hPa
Seasonal Highest MSL Pressure: 1030.4 hPa on 8 September 2020 at 8:30 AM. The same month in 2019 saw 1029.5 hPa and the same season in 2019 was 1030 hPa. This is the highest September monthly maximum air pressure since 1030.7 hPa in 2015 on 11 September at 9:10 AM. For spring this is the highest seasonal pressure on record and the highest since 1031.8 hPa on 9 October 2015 at 8:55 AM.
Seasonal Mean Minimum Relative Humidity: 44.9 % (17 % higher than same season in 2019 and 0.8 % below average).
Seasonal Mean Maximum Relative Humidity: 91.7% (7.2% higher than same season in 2019 and 2.7% above average). This is the highest on record for spring since 92.2 % in 2015.
Seasonal Mean Relative Humidity: 68.2 % (8.5 % higher than same season in 2019 and 0.9 % above average).
Lowest Seasonal Humidity: 12 % on 27 September 2020 at 1:59 PM (6% higher than this month in 2019 and 11% higher than same season in 2019). This is the second lowest monthly minimum humidity for September on record and the lowest since the current record low of 6 % in 2019 on 4 September at 3:30 PM.
Seasonal Highest Humidity: 98 % on 29 October 2020 at 5:43 AM (equal to this month in 2019 and 5% higher than same season in 2019).
Seasonal mean minimum dew point: 12 ºC (0.1 ºC below average).
Seasonal mean maximum dew point: 17.9 ºC (1 ºC above average). This is the highest seasonal mean maximum dew point on record for spring exceeding the previous record high of 17.7 ºC in 2013.
Seasonal mean dew point: 14.9 ºC (0.4 ºC above average).
Lowest dew point: -5.3 ºC on 27 September 2020 at 2:00 PM. This is the second lowest monthly minimum dew point for September on record and the lowest since the current record low of -11.6 ºC in 2019 on 9 September at 1:30 PM. For spring this is the second lowest seasonal minimum dew point on record and the highest since -2.8 ºC in 2018 on 24 November at 2:44 PM.
Highest dew point: 24.1 ºC on 16 November 2020 at 1:24 AM.
Maximum Wind Gust: 62 km/hr on 28 October 2020 at 3:01 PM. The maximum wind gust this month in 2019 and this season in 2019 was 56 km/hr. For winter this is the lowest maximum seasonal wind gust, exceeding the previous record low of 49.4 km/hr in 2013 on 8 June at 2:18 PM.
Maximum Wind Speed: 27 km/hr on 31 October 2020 at 6:18 PM (Moderate Force Wind). For spring this is the lowest seasonal maximum wind speed on record, exceeding the previous record low of 33 km/hr in 2019 on 5 November at 1:45 PM.
Seasonal Wind Run: 9876.2 km (2853 km less than same season in 2019). This is the second highest on record and the highest since the current record high of 12729.2 km in 2019. This is 2637.8 km above average and 36.4 % above average.
Seasonal Mean Wind Speed: 4.5 km/hr (1.4 km/hr lower than this season in 2019, 0.4 km/hr above average and 8.9 % above average) and the second highest on record for spring, with the current record being 5.9 km/hr in 2019.
Seasonal Mean Daily Wind Gust: 27.3 km/hr (3.3 km lower than this season in 2019), 2.5 km/hr above average and 9.2% above average. This is the lowest daily mean maximum wind gust for spring on record since 26 km/hr in 2012.
Seasonal Mean Daily Maximum Wind Speed: 14.2 km/hr, 2 km/hr less than same season in 2019, 3.9 km/hr above average and 27.5 % above average. This is the lowest daily mean maximum wind speed on record for spring exceeding the previous record low of 14.4 km/hr in 2018.
Dominant Direction: E (NE this season in 2019).
Rainfall total: 138.4 mm, 55.1 mm below average (71.5 % of long term average), 36.6 mm below the long term median and 79.1 % of the site median. This ranks as decile 4/ 35th percentile and as average. This is higher than this season in 2019 which was 65.5 mm. Automatic rain gauge was 137.8 mm (-0.4 % of manual gauge).
Highest daily rainfall total: 35 mm on 28 October 2020.
Number of rain days (0.1 mm or greater): 19 days, 4 greater than same season in 2019 and 6 days above average.
Highest rainfall rate: 261.8 mm/hr on the 25 October 2020 at 2:14 PM. This rainfall rate for October exceeded the previous record high of 261.3 mm/hr in 2018 on 21 October at 4:24 PM. For spring this is the highest rainfall rate on record exceeding the previous record high of 261.3 mm/hr in 2018 on 21 October at 2:24 PM.
Highest hourly rainfall: 21.4 mm on the 25 October 2020 at 2:26 PM. This is the second highest hourly rain for October on monthly basis and the highest since 21.8 mm in 2018 on 5 October at 3:50 PM. For spring this is the highest seasonal maximum hourly rainfall on record since the current record high of 64.8 mm on 12 November 2016 at 3:59 PM.
There was 6 thunderstorms, with 10 days with thunder, with 2 nearby thunderstorms.
During September daily rainfall totals were low with light showers during some days during the month. A thunderstorm passed to the south on the 25th and brought a brief light shower.
In October was a mild thunderstorm and light showers during some days in the first half of the month. From the 19th to the end of the month an active period of showers, rain and thunderstorms that occurred on many of these days, with some moderate to heavy falls. A severe thunderstorm in the afternoon of the 25th brought 14 mm of rainfall in 8 minutes and marble sized hail. 2 hours of thunder in the afternoon of the 31st, with very little rainfall as 4 thunderstorms passed close by.
Most rainfall in the month during November 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. The November rainfall was the lowest on record exceeding the previous record low of 14.2 mm in 2019.
There were 6 days of morning dew.
Smoke haze on 1st to 3rd, 25th and 26th.
Heavy fog in early morning of the 14th with visibility down to 150 metres.
A cool to cold day on the 6th under increasing cloud cover accompanied with a S to SE winds in the late morning and some rainfall.
Warm start to the day on the 20th to 24th under cloud cover, along with warm to hot days with sunny skies.
On the 25th a thunderstorm passed to the south and another passed to the north with little rainfall.
Low humidity on the 26th and 27th with dry WSW to NW winds after a NNW to WNW wind change on the 26th.
High pressure ridges along the east Queensland dominated throughout the month that brought generally stable conditions. Some rainfall was brought with the passage of troughs and fronts that produced mostly dry conditions.
Long period rainfall totals remained well below average during most periods while deteriorating further. 6 monthly rainfall fell significantly to 161.7 mm below average being more than 6 months since significant rainfall at the start of the year. 9 monthly rainfall was 79.4 mm above average while 12 to 48-month rainfall was between 72.4 mm below average for 12 month rainfall and 245.3 mm below average for 24 month rainfall.
For September there were 0 existing records exceeded or equalled, along with 3 records that was highest/lowest in at least 7 years.
There were 2 days of morning dew.
Smoke haze on 17th and 18th.
An SSE to ESE wind change in the morning of the 10th, an E to SSE wind change in the afternoon of the 19th and an SSE to SE wind change in the morning of the 27th.
The minimum temperature was reached very early in the day on a number of days: 12th, 14th, 23rd, 27th.
Cold in the afternoon of the 24th as the maximum temperature was reached in the middle of the day with rain and drizzle.
Light but gusty W to SW winds with a severe thunderstorm on the 25th.
A cool to cold day on the 27th with cloudy skies and showers and thundery rain.
A moderate thunderstorm in the afternoon of the 28th brought gusty wind gusting to 62 km/hr.
A hot day on the 31st easing in the afternoon with 4 nearby thunderstorms.
High pressure systems brought stable conditions or onshore moisture in the first half of the month, before slow moving surface troughs brought a period of instability later in the month. This combined with weak high pressure ridges along the east Queensland coast as well.
High pressure ridges along the east Queensland dominated throughout the month that brought generally stable conditions. Some rainfall was brought with the passage of troughs and fronts that produced mostly dry conditions.
Long period rainfall totals continued to remain well below average during most periods, that improved for some of the periods. 6 monthly rainfall improved by 130 mm to 64.5 mm below average. 9 monthly rainfall remained above average at 97.2 mm above average while 12 month rainfall was 12.2 mm above average, improving from 58.6 mm below average in the previous month. 18 month to 48-month rainfall was between 166.6 mm below average for 12 month rainfall and 323.3 mm below average for 36 month rainfall. Compared with the same period in the previous year most of these periods improved, however 24 and 36 monthly rainfall worsened and was the lowest since 2007 (455.8 mm below average for 24 monthly and 624.9 mm below average for 36 monthly rainfall).
For September there were 3 existing records exceeded or equalled, along with 3 records that was highest/lowest in at least 7 years.
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 “Seasonal Meteorological Report for spring 2020”
Summary of Averages and Extremes for spring 2020 for Ferny Grove, Brisbane, Queensland, Australia |
||||||||||||||||
|
Min Temp |
Max Temp |
Mean Temp |
Temp Range |
Min Grass Temp |
Min Grass Temp Depression |
Min Relative Humidity |
Max Relative Humidity |
Mean Relative Humidity |
Min MSL pressure |
Max MSL Pressure |
Mean MSL Pressure |
Dew Point |
Max Wind Gust |
Max Wind Speed |
Daily rain |
September |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
13.3 |
25.9 |
19.6 |
12.6 |
11.2 |
2.1 |
44.5 |
91.8 |
68.2 |
1018.9 |
1024.0 |
1021.4 |
12.7 |
27.6 |
14.1 |
0.5 |
Min |
8.0 |
20.4 |
16.1 |
8.5 |
4.6 |
1.3 |
12 |
70 |
41.0 |
1006.8 |
1015.3 |
1011.1 |
-5.3 |
19.0 |
10.0 |
|
Max |
20.6 |
32.6 |
25.9 |
18.7 |
18.0 |
3.4 |
66 |
98 |
80.0 |
1026.5 |
1030.4 |
1028.4 |
21.6 |
50.0 |
27.0 |
7.2 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
14.2 |
October |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
15.0 |
27.8 |
21.4 |
12.9 |
12.9 |
2.1 |
45.4 |
93.7 |
69.5 |
1014.3 |
1019.0 |
1016.6 |
15.5 |
28.0 |
14.4 |
3.9 |
Min |
11.6 |
23.8 |
19.0 |
5.4 |
9.1 |
0.8 |
28 |
82 |
60.0 |
1004.5 |
1011.5 |
1008.3 |
8.4 |
19.0 |
10.0 |
|
Max |
20.1 |
32.6 |
25.7 |
17.7 |
17.9 |
3.5 |
72 |
98 |
84.5 |
1024.0 |
1027.7 |
1025.8 |
23.5 |
62.0 |
27.0 |
35.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
119.5 |
November |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
17.0 |
29.7 |
23.4 |
12.6 |
14.7 |
2.4 |
44.7 |
89.6 |
66.9 |
1013.2 |
1018.9 |
1016.1 |
16.4 |
26.3 |
14.1 |
0.2 |
Min |
12.8 |
22.6 |
19.3 |
4.8 |
9.8 |
0.6 |
23 |
70 |
50.5 |
1003.3 |
1011.6 |
1007.9 |
5.2 |
21.0 |
10.0 |
|
Max |
21.9 |
35.3 |
27.9 |
18.4 |
20.7 |
3.9 |
55 |
96 |
75.5 |
1021.5 |
1025.5 |
1023.4 |
24.1 |
35.0 |
22.0 |
4.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
4.7 |
Season |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
Average |
15.1 |
27.8 |
21.4 |
12.7 |
12.9 |
2.2 |
44.9 |
91.7 |
68.2 |
1015.5 |
1020.6 |
1018.0 |
14.9 |
27.3 |
14.2 |
1.5 |
Min |
8.0 |
20.4 |
16.1 |
4.8 |
4.6 |
0.6 |
12 |
70 |
41.0 |
1003.3 |
1011.5 |
1007.9 |
-5.3 |
19.0 |
10.0 |
|
Max |
21.9 |
35.3 |
27.9 |
18.7 |
20.7 |
3.9 |
72 |
98 |
84.5 |
1026.5 |
1030.4 |
1028.4 |
24.1 |
62.0 |
27.0 |
35.0 |
Total |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
138.4 |
Summary for spring 2020 from long term average for Ferny Grove, Brisbane, Queensland, Australia |
||||||||
|
Temperature |
Relative Humidity |
MSL Pressure |
Dew Point |
Wind Gust |
Wind Speed |
Rainfall |
Rainfall as Fraction of long-term average (%) |
September |
|
|
|
|
|
|
|
|
Average |
+0.9 |
+2.1 |
+3.2 |
1.0 |
+2.8 |
+3.8 |
-19.0 |
42.7 |
Min |
+1.3 |
+1.8 |
|
0.2 |
|
|
|
|
Max |
+0.5 |
+2.5 |
|
1.8 |
|
|
-2.3 |
|
October |
|
|
|
|
|
|
|
|
Average |
+0.7 |
+0.8 |
-0.7 |
+0.8 |
+3.6 |
+4.4 |
55.0 |
185.4 |
Min |
+0.4 |
-1.8 |
|
+0.5 |
|
|
|
|
Max |
+1.0 |
+3.4 |
|
+1.1 |
|
|
+92.7 |
|
November |
|
|
|
|
|
|
|
|
Average |
-0.1 |
-0.2 |
+1.4 |
-0.5 |
+0.9 |
+3.7 |
-91.2 |
4.9 |
Min |
-0.5 |
-2.4 |
|
-1.1 |
|
|
|
|
Max |
+0.4 |
+2.1 |
|
+0.1 |
|
|
-30.0 |
|
Season |
|
|
|
|
|
|
|
|
Average |
+0.5 |
+0.9 |
+1.3 |
+0.4 |
+2.5 |
+3.9 |
-55.1 |
71.5 |
Min |
+0.4 |
-0.8 |
- |
-0.1 |
- |
- |
- |
- |
Max |
+0.6 |
+2.7 |
- |
+1.0 |
- |
- |
- |
- |
Monthly averages and extremes for spring 2020 for Ferny Grove, Brisbane, Queensland, Australia |
|||||||||||
|
Temperature |
Temperature from Long Term Avg. |
Rain total |
Rain Anomaly |
Rain days |
||||||
|
Avg Min |
Avg Max |
Low Min |
High Max |
Average |
Min |
Max |
Average |
|
|
|
Sep-20 |
13.3 |
25.9 |
8.0 |
32.6 |
19.6 |
+1.3 |
+0.5 |
+0.9 |
14.2 |
- 19.0 |
3 |
Oct-20 |
15.0 |
27.8 |
11.6 |
32.6 |
21.4 |
+0.5 |
+1.1 |
+0.8 |
119.5 |
55.0 |
12 |
Nov-20 |
17.0 |
29.7 |
12.8 |
35.3 |
23.4 |
-0.5 |
+0.4 |
-0.1 |
4.7 |
-91.2 |
4 |
Season |
15.1 |
27.8 |
8.0 |
35.3 |
21.4 |
+0.4 |
+0.6 |
+0.5 |
138.4 |
-55.1 |
19 |
Data copyright Ferny Grove Weather 2020, Produced 3/4/2021. 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 2019 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.