Daily Report for 24th July 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.1 °C (-0.8) 06:08 13.8 °C (+0.6) 19.6 °C (+5.7), 2019 10.6 °C (-3.3), 2011
Maximum Temperature 18.5 °C (-4.2) 15:24 21.8 °C (-0.6) 32.2 °C (+9.5), 2019 16.5 °C (-6.2), 2015
Mean Temperature 15.2 °C (-2.5) 17.2 °C (+0.0) 26.2 °C, 2019 14.4 °C, 2015
Minimum Humidity 70% 18:15 54% 73%, 2017 30%, 2012
Maximum Humidity 94% 05:57 90% 94%, 2009 81%, 2011
Mean Humidity 84% 74% 84%, 2009 50%, 2012
Minimum Pressure 1008 hPa 02:15 1008 hPa 1020 hPa, 2010 1004 hPa, 2015
Maximum Pressure 1016 hPa 23:37 1013 hPa 1024 hPa, 2010 1012 hPa, 2011
Mean Pressure 1012 hPa 1011 hPa 1022 hPa, 2010 1009 hPa, 2015
Mean Wind Speed n/a (-4.3) 0.0 mph (-4.3) 6.3, 2016 2.19, 2012
Maximum Wind Speed n/a 0.0 mph 16.9, 2016 9.2, 2012
Maximum Gust n/a 0.0 mph 25.8, 2016 13, 2012
Mean Wind Direction n/a
Rainfall 3.0 mm 46.4 mm (143%) 31.9 mm, 2015
Maximum Hourly Rain 1.9 mm 14:51 11.2 mm, 2015
Maximum 10-min Rain 0.8 mm 14:56 2.6 mm, 2015
Maximum Rain Rate 6 mm/h 14:51 42 mm/h, 2015
Minimum Dew Point 10.8 °C 22:56 9.7 °C 14.7 °C, 2018 3.4 °C, 2011
Maximum Dew Point 15.2 °C 16:49 14.8 °C 20.2 °C, 2019 10.0 °C, 2011
Mean Dew Point 12.6 °C 12.2 °C 16.9 °C, 2019 6.8 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.1 °C 13.8 °C 19.6 °C, 2019 10.6 °C, 2011
Day Maximum (09-21) 18.5 °C 21.8 °C 32.2 °C, 2019 15.8 °C, 2015
Max 10m Temp Rise 0.9 °C 16:27 0.7 °C 1.9 °C, 2019 0.4 °C, 2015
Max 1hr Temp Rise 3.4 °C 17:10 1.8 °C 5.5 °C, 2012 0.5 °C, 2015
Max 1hr Hum Rise 11% 14:37 8% 19%, 2015 4%, 2017
Max 10m Temp Fall 0.9 °C 14:06 0.7 °C 0.9 °C, 2009 0.3 °C, 2016
Max 1hr Temp Fall 3.2 °C 14:23 1.5 °C 3.2 °C, 2009 0.9 °C, 2017
Max 1hr Hum Fall 17% 17:45 8% 18%, 2012 1%, 2015
Max 10m Wind Speed 4.3 mph 1.8 mph 13.6 mph, 2016 4.3 mph, 2009
Minimum Feels-like n/a 0.0 °C 25.2, 2019 10.6, 2011
Maximum Feels-like n/a 0.0 °C 38, 2019 18.5, 2015
Mean Feels-like n/a 0.0 °C 31.5, 2019 15.8, 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 5.4 °C (-3.3) 8.0 °C (-1.1) 16.5 °C (+7.8), 2012 3.5 °C (-5.2), 2017
Humidity Range 24% 36% 58%, 2014 13%, 2017
Pressure Range 8 hPa 5 hPa 11 hPa, 2015 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5.8 [40%]126 hrs (87%) [36%] 14.4 [100%], 2012 0 [0%], 2015
Wet Hours 2
[Mean rain rate: 1.5 mm/h]
35 hrs (134%) [6.1%] 11, 2015 0, 2010
Cloud Cover not available
Events Light Thunderstorm
Comments 14 Thunderstormtorm , Moderate Rain; Heavy 11,15 Showers
Extra Comments 7 rumbles (2 close) and 3 flashes (2 CGs)
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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Webcam Summary of Cloud Conditions


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Wind rose