Daily Report for 14th September 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.4 °C (+1.1) 06:37 12.2 °C (+0.4) 19.0 °C (+7.7), 2016 8.0 °C (-3.3), 2013
Maximum Temperature 19.1 °C (+0.1) 16:00 19.6 °C (-0.5) 27.3 °C (+8.2), 2020 13.6 °C (-5.5), 2013
Mean Temperature 14.8 °C (+0.6) 15.4 °C (-0.0) 23.1 °C, 2016 11.1 °C, 2013
Minimum Humidity 56% 16:17 53% 81%, 2010 36%, 2019
Maximum Humidity 84% 23:55 89% 98%, 2013 80%, 2016
Mean Humidity 73% 72% 92%, 2013 64%, 2011
Minimum Pressure 1023 hPa 19:54 1016 hPa 1028 hPa, 2019 991 hPa, 2015
Maximum Pressure 1028 hPa 04:57 1024 hPa 1037 hPa, 2019 1000 hPa, 2015
Mean Pressure 1026 hPa 1020 hPa 1033 hPa, 2019 994 hPa, 2015
Mean Wind Speed 7.5 mph (+3.6) 5.8 mph (+1.9) 7.7 mph, 2010 1.3 mph, 2019
Maximum Wind Speed 14.5 mph 13.3 mph 19.4 mph, 2015 7.6 mph, 2019
Maximum Gust 23.3 mph 18:12 20.6 mph 25.9 mph, 2015 10.3 mph, 2019
Mean Wind Direction N
Rainfall 0.0 mm 10.1 mm (38%) 6.7 mm, 2015
Maximum Hourly Rain n/a 3.7, 2015
Maximum 10-min Rain n/a 1.6, 2015
Maximum Rain Rate n/a 30, 2015
Minimum Dew Point 8.4 °C 04:12 7.7 °C 12.5 °C, 2016 5.6 °C, 2011
Maximum Dew Point 12.4 °C 10:58 12.9 °C 17.0 °C, 2016 9.8 °C, 2011
Mean Dew Point 9.8 °C 10.1 °C 16.0 °C, 2016 7.3 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.4 °C 12.4 °C 19.0 °C, 2016 8.0 °C, 2017
Day Maximum (09-21) 19.1 °C 19.6 °C 27.3 °C, 2020 13.6 °C, 2013
Max 10m Temp Rise n/a 17:49 0.4 °C 0.8, 2019 0.2, 2010
Max 1hr Temp Rise n/a 18:39 0.7 °C 4, 2019 0.7, 2010
Max 1hr Hum Rise n/a 17:39 4% 15, 2016 3, 2010
Max 10m Temp Fall n/a 17:39 0.3 °C 1, 2016 0.3, 2018
Max 1hr Temp Fall n/a 17:39 0.5 °C 3.8, 2019 0.9, 2018
Max 1hr Hum Fall n/a 23:42 4% 19, 2012 2, 2010
Max 10m Wind Speed 10.1 mph 18:17 9.5 mph 14.0 mph, 2015 4.5 mph, 2019
Minimum Feels-like 13.2 °C 05:11 12.9 °C 24.1 °C, 2016 4.8 °C, 2017
Maximum Feels-like 20.7 °C 15:49 21.6 °C 33.1 °C, 2016 16.1 °C, 2013
Mean Feels-like 16.0 °C 16.9 °C 27.7 °C, 2016 11.5 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.7 °C (-1.0) 7.4 °C (-0.9) 16.6 °C (+8.9), 2020 5.6 °C (-2.1), 2013
Humidity Range 28% 36% 58%, 2019 12%, 2010
Pressure Range 5 hPa 7 hPa 13 hPa, 2017 3 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [9%]62 hrs (92%) [37%] 11.5 [99%], 2020 0 [0%], 2010
Wet Hours 05.8 hrs (30%) [1.7%] 6, 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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