Daily Report for 26th August 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.3 °C (+1.6) 03:09 14.3 °C (+1.0) 17.1 °C (+4.4), 2016 8.6 °C (-4.2), 2018
Maximum Temperature 22.1 °C (+0.4) 13:30 22.8 °C (+0.5) 32.0 °C (+10.3), 2019 16.2 °C (-5.5), 2014
Mean Temperature 17.0 °C (+1.0) 18.2 °C (+0.8) 24.0 °C, 2019 13.4 °C, 2018
Minimum Humidity 51% 13:42 52% 87%, 2010 29%, 2016
Maximum Humidity 95% 22:14 90% 98%, 2010 79%, 2020
Mean Humidity 81% 74% 95%, 2010 61%, 2019
Minimum Pressure 1008 hPa 16:33 1014 hPa 1016 hPa, 2019 1001 hPa, 2014
Maximum Pressure 1012 hPa 01:19 1018 hPa 1020 hPa, 2019 1006 hPa, 2010
Mean Pressure 1010 hPa 1016 hPa 1018 hPa, 2019 1004 hPa, 2015
Mean Wind Speed 5.9 mph (+1.9) 3.7 mph (-0.3) 8.2 mph, 2020 0.8 mph, 2017
Maximum Wind Speed 13.7 mph 10.4 mph 22.2 mph, 2020 6.5 mph, 2017
Maximum Gust 23.0 mph 17:43 15.3 mph 38.0 mph, 2020 8.4 mph, 2017
Mean Wind Direction S
Rainfall 1.1 mm 39.9 mm (90%) 13.6 mm, 2018
Maximum Hourly Rain 0.3 mm 19:16 4.8 mm, 2014
Maximum 10-min Rain 0.3 mm 19:16 2.3 mm, 2015
Maximum Rain Rate 0.3 mm/h 40 mm/h, 2011
Minimum Dew Point 11.3 °C 06:53 10.5 °C 13.4 °C, 2019 5.8 °C, 2012
Maximum Dew Point 16.7 °C 22:14 15.5 °C 18.6 °C, 2016 12.9 °C, 2012
Mean Dew Point 13.7 °C 13.0 °C 16.3 °C, 2010 10.0 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.3 °C 14.4 °C 17.1 °C, 2016 8.6 °C, 2018
Day Maximum (09-21) 22.1 °C 22.8 °C 32.0 °C, 2019 16.2 °C, 2014
Max 10m Temp Rise 0.5 °C 11:03 0.5 °C 0.9 °C, 2018 0.2 °C, 2014
Max 1hr Temp Rise 1.9 °C 13:13 1.6 °C 3.5 °C, 2019 0.6 °C, 2014
Max 1hr Hum Rise 20% 15:15 8% 20%, 2009 2%, 2014
Max 10m Temp Fall 0.7 °C 15:04 0.5 °C 0.8 °C, 2016 0.2 °C, 2010
Max 1hr Temp Fall 3.0 °C 15:10 1.5 °C 3.9 °C, 2016 1.0 °C, 2010
Max 1hr Hum Fall 14% 12:59 8% 20%, 2018 5%, 2010
Max 10m Wind Speed 11.5 mph 13:44 7.3 mph 17.5 mph, 2020 4.8 mph, 2017
Minimum Feels-like 16.5 °C 00:55 15.8 °C 18.4 °C, 2019 8.6 °C, 2018
Maximum Feels-like 24.3 °C 13:20 25.3 °C 36.7 °C, 2019 20.2 °C, 2014
Mean Feels-like 20.3 °C 20.3 °C 28.0 °C, 2019 15.6 °C, 2018
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.8 °C (-1.1) 8.5 °C (-0.5) 16.6 °C (+7.7), 2019 3.7 °C (-5.2), 2014
Humidity Range 44% 38% 59%, 2016 11%, 2010
Pressure Range 4 hPa 4 hPa 18 hPa, 2020 3 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3 [24%]130 hrs (85%) [38%] 12.8 [101%], 2019 0 [0%], 2014
Wet Hours 4
[Mean rain rate: 0.3 mm/h]
20 hrs (62%) [3.2%] 8, 2010 0, 2012
Cloud Cover not available
Events None
Comments Sl/L14-15, 18-20, occasional. other Rain/Drizzle
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 0.0 °C
Notes
Times of extremes are computed using the midpoint of the longest continuous period at that extreme value.
Cumulative anomalies are reported according to the expected value for the month-to-date rather than month-end.
Sun hrs, Wet hrs, Cloud cover and Events are based on manual equipment/observations (entered with a delay of 1-10 days); their reliablity is questionable and they are provided for interest only.
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Daily Graph of Conditions

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