Daily Report for 8th September 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 16.9 °C (+5.1) 05:23 13.1 °C (+1.2) 16.9 °C (+5.1), 2009 6.9 °C (-4.9), 2019
Maximum Temperature 27.1 °C (+6.9) 15:37 20.0 °C (-0.6) 27.1 °C (+6.9), 2009 16.0 °C (-4.2), 2015
Mean Temperature 20.7 °C (+6.0) 16.0 °C (+0.3) 20.7 °C, 2009 12.1 °C, 2019
Minimum Humidity 44% 15:52 53% 70%, 2011 24%, 2012
Maximum Humidity 94% 06:09 89% 96%, 2014 82%, 2016
Mean Humidity 73% 72% 87%, 2010 54%, 2012
Minimum Pressure 1017 hPa 15:01 1008 hPa 1025 hPa, 2015 996 hPa, 2017
Maximum Pressure 1021 hPa 23:50 1016 hPa 1031 hPa, 2015 1007 hPa, 2017
Mean Pressure 1019 hPa 1012 hPa 1028 hPa, 2015 1000 hPa, 2017
Mean Wind Speed 5.9 mph (+2.0) 6.1 mph (+2.2) 6.6 mph, 2016 1.0 mph, 2014
Maximum Wind Speed 11.4 mph 13.9 mph 22.3 mph, 2016 5.9 mph, 2014
Maximum Gust 18.6 mph 18:21 22.3 mph 33.9 mph, 2016 7.6 mph, 2014
Mean Wind Direction SW
Rainfall 0.0 mm 10.1 mm (66%) 5.7 mm, 2017
Maximum Hourly Rain n/a 4.9, 2010
Maximum 10-min Rain n/a 4.1, 2010
Maximum Rain Rate n/a 50, 2010
Minimum Dew Point 10.8 °C 21:48 8.0 °C 13.9 °C, 2020 4.0 °C, 2012
Maximum Dew Point 17.8 °C 10:28 13.1 °C 18.9 °C, 2020 8.9 °C, 2019
Mean Dew Point 15.2 °C 10.7 °C 16.3 °C, 2020 6.5 °C, 2019
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 16.9 °C 13.3 °C 17.8 °C, 2016 6.9 °C, 2019
Day Maximum (09-21) 27.1 °C 20.0 °C 27.1 °C, 2009 16.0 °C, 2015
Max 10m Temp Rise n/a 21:35 0.7 °C 1.2, 2012 0.3, 2011
Max 1hr Temp Rise n/a 11:09 1.1 °C 4.9, 2012 1, 2017
Max 1hr Hum Rise n/a 21:25 7% 16, 2013 4, 2020
Max 10m Temp Fall n/a 21:25 0.5 °C 1.4, 2013 0.3, 2015
Max 1hr Temp Fall n/a 21:25 1.0 °C 4, 2012 1.1, 2018
Max 1hr Hum Fall n/a 22:25 7% 18, 2013 5, 2015
Max 10m Wind Speed 8.7 mph 12:09 10.0 mph 17.7 mph, 2016 4.1 mph, 2014
Minimum Feels-like 21.4 °C 04:48 14.5 °C 21.4 °C, 2009 5.3 °C, 2019
Maximum Feels-like 30.8 °C 15:37 22.0 °C 31.0 °C, 2020 17.1 °C, 2015
Mean Feels-like 24.9 °C 17.7 °C 24.9 °C, 2009 11.8 °C, 2019
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 10.2 °C (+1.8) 6.8 °C (-1.8) 17.2 °C (+8.7), 2012 5.5 °C (-3.0), 2017
Humidity Range 50% 36% 60%, 2012 19%, 2011
Pressure Range 4 hPa 8 hPa 11 hPa, 2017 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9 [75%]37 hrs (95%) [38%] 11.7 [98%], 2014 0.3 [3%], 2010
Wet Hours 05.8 hrs (53%) [3%] 6, 2017 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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Wind rose