Daily Report for 6th December 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.7 °C (+4.2) 23:18 4.2 °C (+0.6) 12.5 °C (+9.0), 2015 -4.3 °C (-7.8), 2010
Maximum Temperature 12.3 °C (+3.7) 03:43 9.2 °C (+0.5) 14.0 °C (+5.4), 2015 -1.0 °C (-9.6), 2010
Mean Temperature 9.8 °C (+3.9) 6.7 °C (+0.6) 13.2 °C, 2015 -2.4 °C, 2010
Minimum Humidity 66% 14:11 76% 95%, 2010 58%, 2013
Maximum Humidity 96% 08:38 97% 98%, 2010 80%, 2016
Mean Humidity 84% 89% 97%, 2010 68%, 2013
Minimum Pressure 990 hPa 07:38 996 hPa 1025 hPa, 2016 990 hPa, 2009
Maximum Pressure 1004 hPa 23:10 1005 hPa 1033 hPa, 2017 1004 hPa, 2009
Mean Pressure 997 hPa 1001 hPa 1027 hPa, 2013 997 hPa, 2009
Mean Wind Speed 7.8 mph (+2.7) 5.0 mph (-0.1) 9.1 mph, 2015 1.7 mph, 2016
Maximum Wind Speed 13.9 mph 10.0 mph 22.1 mph, 2015 6.2 mph, 2010
Maximum Gust 25.3 mph 08:46 16.0 mph 33.9 mph, 2015 7.6 mph, 2010
Mean Wind Direction SW
Rainfall 7.1 mm 27.6 mm (255%) 7.1 mm, 2009
Maximum Hourly Rain 4.1 mm 09:11 4.1 mm, 2009
Maximum 10-min Rain n/a 08:51 1.3, 2019
Maximum Rain Rate n/a 08:51 26, 2019
Minimum Dew Point 3.9 °C 14:48 2.0 °C 9.2 °C, 2018 -5.2 °C, 2012
Maximum Dew Point 11.3 °C 06:20 8.2 °C 11.6 °C, 2015 -1.3 °C, 2010
Mean Dew Point 7.1 °C 5.0 °C 10.4 °C, 2018 -2.7 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 9.4 °C * 5.2 °C 12.4 °C, 2015 -4.3 °C, 2010
Day Maximum (09-21) * 10.2 °C * 8.6 °C 14.0 °C, 2015 -1.0 °C, 2010
Max 10m Temp Rise 0.4 °C 12:01 0.5 °C 0.5 °C, 2016 0.2 °C, 2010
Max 1hr Temp Rise 0.8 °C 12:46 1.1 °C 1.8 °C, 2016 0.4 °C, 2019
Max 1hr Hum Rise 5% 05:16 5% 9%, 2017 1%, 2016
Max 10m Temp Fall 0.8 °C 09:01 0.4 °C 0.8 °C, 2009 0.2 °C, 2012
Max 1hr Temp Fall 2.0 °C 09:51 1.0 °C 2.0 °C, 2009 0.5 °C, 2015
Max 1hr Hum Fall 22% 12:46 9% 22%, 2009 1%, 2010
Max 10m Wind Speed 12.9 mph 06:40 8.7 mph 16.0 mph, 2015 4.3 mph, 2010
Minimum Feels-like 4.9 °C 23:15 1.2 °C 12.5 °C, 2015 -7.2 °C, 2010
Maximum Feels-like 14.0 °C 06:10 9.9 °C 15.5 °C, 2015 -1.0 °C, 2010
Mean Feels-like 9.7 °C 6.1 °C 14.5 °C, 2015 -2.8 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 24 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.6 °C (-0.5) 5.1 °C (-0.1) 8.1 °C (+3.0), 2012 1.5 °C (-3.6), 2015
Humidity Range 30% 21% 30%, 2009 3%, 2010
Pressure Range 14 hPa 9 hPa 21 hPa, 2012 3 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3.5 [49%]18 hrs (184%) [40%] 7.2 [100%], 2014 0 [0%], 2010
Wet Hours 5
[Mean rain rate: 1.4 mm/h]
25 hrs (204%) [17%] 10, 2019 0, 2010
Cloud Cover not available
Events None
Comments 05-10 Moderate/Heavy Rain
Extra Comments
Issues 1st - 6th: Rainfall data approx; 10-min totals & rain rates unavailable as 5-min logs; monthly sum is correct.
Observer Absent? Yes - observations may be unreliable
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


Webcam summary not available for this day

Wind rose