Daily Report for 9th August 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 16.1 °C (+2.6) 06:36 14.3 °C (+0.7) 17.4 °C (+3.8), 2019 11.5 °C (-2.1), 2016
Maximum Temperature 23.5 °C (+0.9) 14:10 22.7 °C (+0.1) 31.7 °C (+9.1), 2020 15.4 °C (-7.2), 2017
Mean Temperature 19.6 °C (+1.7) 18.2 °C (+0.4) 23.7 °C, 2020 13.9 °C, 2017
Minimum Humidity 48% 16:03 57% 78%, 2017 30%, 2015
Maximum Humidity 81% 07:35 93% 94%, 2014 71%, 2011
Mean Humidity 64% 77% 85%, 2018 52%, 2016
Minimum Pressure 1017 hPa 19:14 1015 hPa 1024 hPa, 2012 999 hPa, 2019
Maximum Pressure 1021 hPa 06:08 1018 hPa 1027 hPa, 2012 1008 hPa, 2019
Mean Pressure 1019 hPa 1017 hPa 1026 hPa, 2012 1002 hPa, 2019
Mean Wind Speed 2.2 mph (-1.8) 2.8 mph (-1.2) 7.9 mph, 2019 1.8 mph, 2012
Maximum Wind Speed 7.6 mph 7.8 mph 20.5 mph, 2019 7.4 mph, 2012
Maximum Gust 10.1 mph 21:10 11.2 mph 36.9 mph, 2019 8.7 mph, 2012
Mean Wind Direction E
Rainfall 0.0 mm 36.4 mm (237%) 39.1 mm, 2017
Maximum Hourly Rain n/a 11.2, 2017
Maximum 10-min Rain n/a 4.8, 2019
Maximum Rain Rate n/a 79, 2019
Minimum Dew Point 9.9 °C 23:55 10.9 °C 15.2 °C, 2019 3.3 °C, 2016
Maximum Dew Point 14.5 °C 01:00 16.2 °C 20.2 °C, 2020 8.3 °C, 2016
Mean Dew Point 12.2 °C 13.7 °C 17.2 °C, 2020 5.5 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 16.1 °C 14.5 °C 18.4 °C, 2019 11.5 °C, 2016
Day Maximum (09-21) 23.5 °C 22.7 °C 31.7 °C, 2020 15.4 °C, 2017
Max 10m Temp Rise 0.4 °C 11:13 0.5 °C 1.1 °C, 2012 0.2 °C, 2017
Max 1hr Temp Rise 1.6 °C 13:12 1.6 °C 5.0 °C, 2012 0.6 °C, 2018
Max 1hr Hum Rise 6% 01:01 7% 20%, 2019 2%, 2017
Max 10m Temp Fall 0.4 °C 23:56 0.4 °C 1.5 °C, 2019 0.2 °C, 2017
Max 1hr Temp Fall 1.4 °C 23:56 1.5 °C 3.8 °C, 2019 0.8 °C, 2017
Max 1hr Hum Fall 9% 11:04 7% 18%, 2014 1%, 2017
Max 10m Wind Speed 4.8 mph 11:50 5.6 mph 16.4 mph, 2019 4.8 mph, 2009
Minimum Feels-like 18.6 °C 06:27 14.8 °C 21.5 °C, 2019 11.5 °C, 2016
Maximum Feels-like 26.0 °C 14:04 24.2 °C 38.9 °C, 2020 18.3 °C, 2017
Mean Feels-like 21.9 °C 19.2 °C 29.1 °C, 2020 15.7 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.4 °C (-1.6) 8.4 °C (-0.5) 14.8 °C (+5.8), 2020 2.3 °C (-6.7), 2017
Humidity Range 33% 36% 57%, 2012 8%, 2017
Pressure Range 4 hPa 4 hPa 13 hPa, 2017 3 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6 [44%]42 hrs (77%) [34%] 12 [88%], 2015 0 [0%], 2017
Wet Hours 09.8 hrs (89%) [4.5%] 16, 2017 0, 2009
Cloud Cover not available
Events None
Comments -
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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Wind rose