Daily Report for 10th August 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 15.1 °C (+1.6) 05:21 14.4 °C (+0.8) 18.8 °C (+5.3), 2020 9.2 °C (-4.3), 2011
Maximum Temperature 20.8 °C (-1.7) 11:59 22.6 °C (-0.1) 33.7 °C (+11.2), 2020 19.1 °C (-3.4), 2010
Mean Temperature 17.7 °C (-0.1) 18.1 °C (+0.4) 25.9 °C, 2020 14.7 °C, 2018
Minimum Humidity 58% 12:11 57% 69%, 2010 36%, 2013
Maximum Humidity 92% 23:31 93% 95%, 2014 71%, 2013
Mean Humidity 74% 77% 86%, 2010 53%, 2013
Minimum Pressure 1014 hPa 17:41 1015 hPa 1023 hPa, 2012 992 hPa, 2014
Maximum Pressure 1018 hPa 01:44 1018 hPa 1028 hPa, 2012 1007 hPa, 2014
Mean Pressure 1016 hPa 1017 hPa 1026 hPa, 2012 999 hPa, 2014
Mean Wind Speed 4.3 mph (+0.3) 2.9 mph (-1.1) 12.3 mph, 2019 1.8 mph, 2012
Maximum Wind Speed 12.7 mph 8.3 mph 26.2 mph, 2019 6.9 mph, 2012
Maximum Gust 19.2 mph 15:01 12.0 mph 48.4 mph, 2019 9.7 mph, 2012
Mean Wind Direction SW
Rainfall 0.0 mm 36.4 mm (213%) 26.9 mm, 2014
Maximum Hourly Rain n/a 23.3, 2014
Maximum 10-min Rain n/a 8.9, 2014
Maximum Rain Rate n/a 119, 2018
Minimum Dew Point 9.7 °C 00:22 10.8 °C 16.2 °C, 2020 4.3 °C, 2016
Maximum Dew Point 16.4 °C 23:58 16.2 °C 20.7 °C, 2020 9.8 °C, 2013
Mean Dew Point 12.9 °C 13.6 °C 18.4 °C, 2020 6.9 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 15.1 °C 14.5 °C 18.8 °C, 2020 9.2 °C, 2011
Day Maximum (09-21) 20.8 °C 22.6 °C 33.7 °C, 2020 19.1 °C, 2010
Max 10m Temp Rise 0.6 °C 10:01 0.5 °C 0.9 °C, 2011 0.4 °C, 2010
Max 1hr Temp Rise 2.1 °C 10:17 1.7 °C 3.8 °C, 2011 1.4 °C, 2010
Max 1hr Hum Rise 8% 15:04 7% 20%, 2018 6%, 2015
Max 10m Temp Fall 0.7 °C 02:20 0.4 °C 1.7 °C, 2014 0.4 °C, 2015
Max 1hr Temp Fall 1.3 °C 03:11 1.4 °C 3.5 °C, 2014 1.0 °C, 2015
Max 1hr Hum Fall 10% 10:54 7% 22%, 2018 7%, 2010
Max 10m Wind Speed 8.1 mph 15:58 5.8 mph 18.0 mph, 2019 4.9 mph, 2012
Minimum Feels-like 16.4 °C 05:21 15.0 °C 23.5 °C, 2020 9.2 °C, 2011
Maximum Feels-like 23.4 °C 12:50 24.1 °C 40.7 °C, 2020 20.2 °C, 2016
Mean Feels-like 20.5 °C 19.4 °C 32.2 °C, 2020 15.5 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.7 °C (-3.3) 8.1 °C (-0.8) 14.9 °C (+5.9), 2020 4.1 °C (-4.9), 2010
Humidity Range 34% 36% 53%, 2012 15%, 2015
Pressure Range 4 hPa 4 hPa 15 hPa, 2014 2 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2 [15%]44 hrs (72%) [32%] 12.5 [92%], 2020 0 [0%], 2010
Wet Hours 09.8 hrs (80%) [4.1%] 6, 2010 0, 2009
Cloud Cover not available
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
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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Webcam Summary of Cloud Conditions


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Wind rose