Daily Report for 7th December 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 5.7 °C (+2.2) 23:57 4.4 °C (+0.8) 11.6 °C (+8.1), 2015 -3.1 °C (-6.6), 2010
Maximum Temperature 10.8 °C (+2.3) 12:24 9.5 °C (+0.8) 13.8 °C (+5.3), 2015 0.9 °C (-7.6), 2010
Mean Temperature 8.5 °C (+2.2) 7.0 °C (+0.8) 12.9 °C, 2015 -1.0 °C, 2010
Minimum Humidity 81% 00:29 77% 84%, 2015 45%, 2011
Maximum Humidity 94% 19:55 97% 98%, 2010 78%, 2016
Mean Humidity 88% 89% 91%, 2010 66%, 2011
Minimum Pressure 995 hPa 16:08 996 hPa 1025 hPa, 2013 995 hPa, 2009
Maximum Pressure 1004 hPa 03:02 1005 hPa 1028 hPa, 2013 1004 hPa, 2009
Mean Pressure 1000 hPa 1000 hPa 1026 hPa, 2013 1000 hPa, 2009
Mean Wind Speed 6.1 mph (+1.0) 5.2 mph (+0.1) 9.4 mph, 2018 4.0 mph, 2010
Maximum Wind Speed 14.8 mph 10.7 mph 20.1 mph, 2011 10.9 mph, 2010
Maximum Gust 22.5 mph 16:31 16.9 mph 35.7 mph, 2018 14.5 mph, 2010
Mean Wind Direction S
Rainfall 3.0 mm 30.6 mm (242%) 6.4 mm, 2018
Maximum Hourly Rain 1.6 mm 16:44 1.8 mm, 2017
Maximum 10-min Rain 0.5 mm 16:02 1.5 mm, 2017
Maximum Rain Rate 3.0 mm/h 15:55 40 mm/h, 2017
Minimum Dew Point 3.9 °C 23:57 2.3 °C 9.1 °C, 2015 -4.1 °C, 2010
Maximum Dew Point 8.4 °C 16:28 8.2 °C 12.0 °C, 2015 -0.6 °C, 2010
Mean Dew Point 6.6 °C 5.2 °C 11.0 °C, 2015 -2.4 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 7.4 °C * 5.5 °C 12.9 °C, 2015 -3.1 °C, 2010
Day Maximum (09-21) 10.8 °C 8.9 °C 13.8 °C, 2015 0.9 °C, 2010
Max 10m Temp Rise 0.2 °C 06:26 0.4 °C 0.6 °C, 2012 0.2 °C, 2009
Max 1hr Temp Rise 0.7 °C 07:15 1.0 °C 1.7 °C, 2012 0.4 °C, 2015
Max 1hr Hum Rise 5% 16:27 5% 8%, 2012 1%, 2015
Max 10m Temp Fall 0.4 °C 01:07 0.4 °C 1.8 °C, 2017 0.1 °C, 2016
Max 1hr Temp Fall 1.2 °C 17:56 1.0 °C 3.5 °C, 2017 0.6 °C, 2016
Max 1hr Hum Fall 4% 10:03 9% 19%, 2014 2%, 2015
Max 10m Wind Speed 10.5 mph 16:39 9.0 mph 15.0 mph, 2018 7.4 mph, 2013
Minimum Feels-like 2.3 °C 23:41 1.4 °C 12.6 °C, 2015 -6.3 °C, 2010
Maximum Feels-like 11.2 °C 12:05 10.1 °C 16.1 °C, 2015 0.9 °C, 2010
Mean Feels-like 7.2 °C 6.2 °C 14.6 °C, 2015 -3.1 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 20 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.1 °C (+0.1) 5.1 °C (-0.1) 7.5 °C (+2.5), 2017 2.2 °C (-2.8), 2015
Humidity Range 13% 19% 44%, 2011 4%, 2016
Pressure Range 9 hPa 9 hPa 19 hPa, 2012 1 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]18 hrs (158%) [35%] 5.5 [77%], 2011 0 [0%], 2009
Wet Hours 2.5
[Mean rain rate: 1.2 mm/h]
27 hrs (193%) [16%] 6, 2018 0, 2010
Cloud Cover not available
Events None
Comments 12-1530 SLight/Light Showers, 1530-1730 Moderate Rain
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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