Daily Report for 9th September 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.0 °C (+0.3) 23:59 13.0 °C (+1.1) 15.7 °C (+4.0), 2011 9.3 °C (-2.4), 2013
Maximum Temperature 18.2 °C (-1.8) 00:11 19.8 °C (-0.7) 27.6 °C (+7.6), 2012 12.9 °C (-7.1), 2013
Mean Temperature 15.9 °C (-0.8) 16.0 °C (+0.2) 18.5 °C, 2011 11.1 °C, 2013
Minimum Humidity 49% 19:22 52% 84%, 2013 30%, 2012
Maximum Humidity 82% 01:04 88% 96%, 2011 82%, 2009
Mean Humidity 65% 71% 92%, 2013 60%, 2012
Minimum Pressure 1021 hPa 00:35 1009 hPa 1023 hPa, 2020 996 hPa, 2017
Maximum Pressure 1033 hPa 23:50 1018 hPa 1033 hPa, 2009 1002 hPa, 2017
Mean Pressure 1027 hPa 1014 hPa 1027 hPa, 2009 998 hPa, 2017
Mean Wind Speed 5.4 mph (+1.5) 6.1 mph (+2.2) 11.4 mph, 2016 1.7 mph, 2014
Maximum Wind Speed 13.0 mph 13.8 mph 21.9 mph, 2016 7.8 mph, 2014
Maximum Gust 16.8 mph 02:39 21.7 mph 33.9 mph, 2016 10.7 mph, 2014
Mean Wind Direction N
Rainfall 0.0 mm 10.1 mm (59%) 6.8 mm, 2013
Maximum Hourly Rain n/a 3.6, 2011
Maximum 10-min Rain n/a 1.9, 2011
Maximum Rain Rate n/a 20, 2011
Minimum Dew Point 5.4 °C 22:31 7.7 °C 14.6 °C, 2011 5.4 °C, 2009
Maximum Dew Point 15.0 °C 01:04 13.3 °C 17.7 °C, 2011 11.7 °C, 2019
Mean Dew Point 9.1 °C 10.5 °C 15.9 °C, 2011 9.1 °C, 2009
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 13.8 °C * 13.4 °C 15.7 °C, 2011 9.3 °C, 2013
Day Maximum (09-21) * 17.8 °C * 19.7 °C 27.6 °C, 2012 12.9 °C, 2013
Max 10m Temp Rise n/a 23:41 0.6 °C 0.9, 2012 0.3, 2011
Max 1hr Temp Rise n/a 23:41 1.0 °C 4.7, 2012 1, 2013
Max 1hr Hum Rise n/a 23:46 6% 19, 2017 3, 2011
Max 10m Temp Fall n/a 23:51 0.5 °C 0.9, 2017 0.2, 2013
Max 1hr Temp Fall n/a 02:02 0.9 °C 2.8, 2012 0.6, 2019
Max 1hr Hum Fall n/a 01:36 7% 26, 2015 5, 2013
Max 10m Wind Speed 8.6 mph 02:07 9.8 mph 17.2 mph, 2016 5.6 mph, 2014
Minimum Feels-like 12.0 °C 23:59 14.3 °C 19.4 °C, 2011 7.8 °C, 2013
Maximum Feels-like 22.1 °C 01:02 22.0 °C 28.4 °C, 2012 15.2 °C, 2013
Mean Feels-like 16.9 °C 17.7 °C 23.1 °C, 2011 12.3 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.2 °C (-2.1) 6.8 °C (-1.8) 17.5 °C (+9.2), 2012 3.6 °C (-4.7), 2013
Humidity Range 33% 36% 54%, 2012 11%, 2013
Pressure Range 12 hPa 9 hPa 12 hPa, 2009 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [8%]38 hrs (87%) [35%] 10 [84%], 2012 0 [0%], 2019
Wet Hours 05.8 hrs (47%) [2.7%] 5, 2013 0, 2009
Cloud Cover not available
Events None
Comments -
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

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Webcam Summary of Cloud Conditions


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Wind rose