Daily Report for 19th August 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.1 °C (+0.9) 06:37 14.6 °C (+1.1) 17.7 °C (+4.5), 2012 9.1 °C (-4.1), 2011
Maximum Temperature 28.7 °C (+6.5) 15:53 23.0 °C (+0.5) 29.5 °C (+7.3), 2012 18.1 °C (-4.1), 2014
Mean Temperature 20.5 °C (+3.7) 18.4 °C (+0.8) 23.6 °C, 2012 13.8 °C, 2014
Minimum Humidity 35% 18:05 55% 85%, 2020 35%, 2009
Maximum Humidity 87% 05:51 92% 97%, 2011 76%, 2014
Mean Humidity 65% 75% 92%, 2020 56%, 2013
Minimum Pressure 1014 hPa 20:05 1015 hPa 1018 hPa, 2018 1000 hPa, 2020
Maximum Pressure 1018 hPa 00:28 1019 hPa 1026 hPa, 2013 1009 hPa, 2016
Mean Pressure 1016 hPa 1017 hPa 1019 hPa, 2018 1005 hPa, 2020
Mean Wind Speed 4.1 mph (+0.1) 3.5 mph (-0.5) 6.8 mph, 2018 2.6 mph, 2012
Maximum Wind Speed 11.5 mph 9.4 mph 22.3 mph, 2016 9.2 mph, 2012
Maximum Gust 17.6 mph 13:35 13.6 mph 30.6 mph, 2016 12.5 mph, 2013
Mean Wind Direction S
Rainfall 0.0 mm 37.8 mm (116%) 10.0 mm, 2020
Maximum Hourly Rain n/a 3.5, 2020
Maximum 10-min Rain n/a 0.9, 2015
Maximum Rain Rate n/a 18, 2015
Minimum Dew Point 10.0 °C 18:15 11.1 °C 14.5 °C, 2018 4.1 °C, 2014
Maximum Dew Point 16.5 °C 13:47 16.0 °C 19.8 °C, 2012 8.5 °C, 2014
Mean Dew Point 13.1 °C 13.6 °C 16.8 °C, 2020 5.7 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.1 °C 14.7 °C 17.7 °C, 2012 9.1 °C, 2011
Day Maximum (09-21) 28.7 °C 23.0 °C 29.5 °C, 2012 18.1 °C, 2014
Max 10m Temp Rise n/a 13:37 0.5 °C 0.9, 2012 0.2, 2016
Max 1hr Temp Rise n/a 14:27 1.3 °C 3.2, 2012 0.7, 2016
Max 1hr Hum Rise n/a 21:59 6% 16, 2012 3, 2020
Max 10m Temp Fall n/a 13:27 0.5 °C 1, 2019 0.3, 2020
Max 1hr Temp Fall n/a 18:50 1.2 °C 2.6, 2013 1.1, 2020
Max 1hr Hum Fall n/a 14:27 6% 17, 2013 3, 2020
Max 10m Wind Speed 7.5 mph 16:29 6.5 mph 16.2 mph, 2016 6.7 mph, 2012
Minimum Feels-like 16.3 °C 06:35 16.1 °C 22.3 °C, 2012 7.9 °C, 2011
Maximum Feels-like 32.7 °C 15:28 25.5 °C 34.7 °C, 2012 18.1 °C, 2014
Mean Feels-like 23.3 °C 20.6 °C 28.7 °C, 2012 13.8 °C, 2014
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 14.6 °C (+5.5) 8.4 °C (-0.6) 14.6 °C (+5.5), 2009 3.1 °C (-6.0), 2016
Humidity Range 52% 37% 52%, 2009 9%, 2016
Pressure Range 4 hPa 3 hPa 14 hPa, 2013 4 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10.5 [80%]91 hrs (80%) [35%] 10.5 [80%], 2009 0 [0%], 2020
Wet Hours 014 hrs (59%) [3%] 8, 2020 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