Daily Report for 26th May 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.2 °C (+0.7) 09:53 8.6 °C (+0.7) 14.9 °C (+5.4), 2018 5.1 °C (-4.4), 2013
Maximum Temperature 17.2 °C (-0.6) 00:10 18.0 °C (+1.7) 26.7 °C (+8.9), 2017 14.7 °C (-3.1), 2014
Mean Temperature 13.6 °C (+0.1) 13.0 °C (+1.2) 20.5 °C, 2017 11.5 °C, 2014
Minimum Humidity 38% 17:16 46% 63%, 2019 29%, 2012
Maximum Humidity 94% 08:34 86% 94%, 2009 75%, 2010
Mean Humidity 69% 68% 83%, 2014 50%, 2013
Minimum Pressure 1007 hPa 03:13 1014 hPa 1035 hPa, 2020 1005 hPa, 2011
Maximum Pressure 1022 hPa 23:14 1019 hPa 1038 hPa, 2020 1012 hPa, 2010
Mean Pressure 1014 hPa 1016 hPa 1036 hPa, 2020 1009 hPa, 2011
Mean Wind Speed n/a (-4.7) 0.0 mph (-4.7) 7.7, 2011 2.3, 2020
Maximum Wind Speed n/a 0.0 mph 20.1, 2011 8.5, 2014
Maximum Gust n/a 0.0 mph 26.8, 2011 12.7, 2020
Mean Wind Direction n/a
Rainfall 11.9 mm 24.4 mm (57%) 14.5 mm, 2011
Maximum Hourly Rain 4.4 mm 07:52 5.2 mm, 2011
Maximum 10-min Rain 1.1 mm 07:17 3.8 mm, 2011
Maximum Rain Rate 16 mm/h 07:17 80 mm/h, 2011
Minimum Dew Point 1.8 °C 17:22 3.7 °C 13.1 °C, 2018 0.3 °C, 2013
Maximum Dew Point 15.0 °C 01:19 9.7 °C 18.5 °C, 2018 4.0 °C, 2013
Mean Dew Point 7.6 °C 6.7 °C 15.2 °C, 2018 2.1 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.2 °C 8.8 °C 15.1 °C, 2019 5.1 °C, 2013
Day Maximum (09-21) * 16.8 °C * 18.0 °C 26.7 °C, 2017 14.7 °C, 2014
Max 10m Temp Rise 0.6 °C 12:23 0.7 °C 0.8 °C, 2013 0.3 °C, 2014
Max 1hr Temp Rise 2.2 °C 12:55 2.3 °C 3.7 °C, 2020 1.2 °C, 2011
Max 1hr Hum Rise 7% 18:22 8% 15%, 2020 6%, 2010
Max 10m Temp Fall 0.7 °C 05:13 0.5 °C 1.1 °C, 2019 0.3 °C, 2010
Max 1hr Temp Fall 2.1 °C 05:35 1.5 °C 4.5 °C, 2020 1.3 °C, 2010
Max 1hr Hum Fall 19% 12:15 14% 21%, 2012 6%, 2010
Max 10m Wind Speed n/a 0.0 mph 13.1, 2011 6.1, 2015
Minimum Feels-like n/a 0.0 °C 17.8, 2018 3, 2013
Maximum Feels-like n/a 0.0 °C 31, 2018 15.9, 2014
Mean Feels-like n/a 0.0 °C 23.8, 2018 12.3, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.0 °C (-1.3) 9.4 °C (+1.0) 15.3 °C (+7.0), 2020 4.2 °C (-4.1), 2011
Humidity Range 56% 40% 58%, 2012 22%, 2019
Pressure Range 15 hPa 5 hPa 15 hPa, 2009 2 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5.8 [40%]154 hrs (97%) [42%] 14.6 [100%], 2012 0 [0%], 2014
Wet Hours 9
[Mean rain rate: 1.3 mm/h]
23 hrs (67%) [3.6%] 10, 2014 0, 2010
Cloud Cover not available
Events None
Comments 00-09 Rain: Heavy 07-08, Light/Moderate othrwse
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