Daily Report for 26th July 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.4 °C (-0.5) 05:09 13.7 °C (+0.4) 19.6 °C (+5.7), 2019 12.0 °C (-1.9), 2011
Maximum Temperature 20.6 °C (-2.1) 13:15 21.8 °C (-0.5) 33.9 °C (+11.2), 2018 16.6 °C (-6.1), 2015
Mean Temperature 16.4 °C (-1.3) 17.1 °C (-0.1) 26.6 °C, 2018 14.5 °C, 2015
Minimum Humidity 57% 13:40 53% 66%, 2017 30%, 2018
Maximum Humidity 92% 07:17 90% 94%, 2020 75%, 2012
Mean Humidity 78% 74% 81%, 2020 53%, 2012
Minimum Pressure 1013 hPa 21:00 1009 hPa 1019 hPa, 2016 996 hPa, 2015
Maximum Pressure 1023 hPa 00:23 1014 hPa 1023 hPa, 2009 1013 hPa, 2013
Mean Pressure 1018 hPa 1012 hPa 1020 hPa, 2016 1005 hPa, 2015
Mean Wind Speed n/a (-4.3) 0.0 mph (-4.3) 6, 2020 2.5, 2014
Maximum Wind Speed n/a 0.0 mph 15.2, 2017 8.1, 2011
Maximum Gust n/a 0.0 mph 24.1, 2017 10.9, 2011
Mean Wind Direction n/a
Rainfall 0.5 mm 46.9 mm (133%) 7.6 mm, 2015
Maximum Hourly Rain 0.3 mm 20:44 3.4 mm, 2015
Maximum 10-min Rain 0.3 mm 19:54 1.1 mm, 2019
Maximum Rain Rate 0.3 mm/h 20:44 18 mm/h, 2020
Minimum Dew Point 10.8 °C 00:39 9.7 °C 15.6 °C, 2019 7.3 °C, 2015
Maximum Dew Point 14.8 °C 10:16 14.8 °C 19.6 °C, 2018 12.5 °C, 2011
Mean Dew Point 12.4 °C 12.2 °C 17.6 °C, 2019 10.8 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.4 °C 13.8 °C 19.7 °C, 2019 12.0 °C, 2011
Day Maximum (09-21) 20.6 °C 21.8 °C 33.9 °C, 2018 16.6 °C, 2015
Max 10m Temp Rise 0.4 °C 09:38 0.7 °C 0.7 °C, 2013 0.3 °C, 2015
Max 1hr Temp Rise 1.6 °C 10:00 1.8 °C 3.3 °C, 2018 1.3 °C, 2015
Max 1hr Hum Rise 9% 19:50 8% 23%, 2020 5%, 2011
Max 10m Temp Fall 0.7 °C 02:09 0.7 °C 1.8 °C, 2020 0.3 °C, 2015
Max 1hr Temp Fall 1.5 °C 19:23 1.5 °C 3.1 °C, 2020 0.8 °C, 2015
Max 1hr Hum Fall 10% 10:52 9% 15%, 2020 2%, 2015
Max 10m Wind Speed 4.2 mph 1.9 mph 12.2 mph, 2017 4.2 mph, 2009
Minimum Feels-like n/a 0.0 °C 24.9, 2019 13, 2011
Maximum Feels-like n/a 0.0 °C 38.7, 2018 20.6, 2015
Mean Feels-like n/a 0.0 °C 31.9, 2018 16.4, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.2 °C (-1.5) 8.1 °C (-1.0) 14.8 °C (+6.1), 2018 3.6 °C (-5.1), 2015
Humidity Range 35% 37% 61%, 2018 19%, 2017
Pressure Range 10 hPa 5 hPa 20 hPa, 2015 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2.9 [20%]138 hrs (88%) [36%] 14.3 [100%], 2012 0 [0%], 2015
Wet Hours 2
[Mean rain rate: 0.2 mm/h]
37 hrs (131%) [6%] 7, 2015 0, 2011
Cloud Cover not available
Events None
Comments Light/SLight 1830-2030 Rain
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

daygraph daygraph 2 daygraph-wdir

Webcam Summary of Cloud Conditions


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Wind rose