Daily Report for 21st February 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.6 °C (+1.4) 07:23 0.9 °C (-1.2) 11.4 °C (+9.2), 2016 -1.2 °C (-3.4), 2010
Maximum Temperature 13.2 °C (+5.4) 15:22 6.3 °C (-1.0) 14.5 °C (+6.8), 2016 1.8 °C (-6.0), 2013
Mean Temperature 8.4 °C (+3.4) 3.6 °C (-1.1) 12.8 °C, 2016 1.2 °C, 2013
Minimum Humidity 53% 15:30 66% 84%, 2011 49%, 2014
Maximum Humidity 86% 08:29 95% 98%, 2010 63%, 2013
Mean Humidity 70% 80% 92%, 2010 55%, 2013
Minimum Pressure 1030 hPa 16:22 1008 hPa 1030 hPa, 2009 991 hPa, 2010
Maximum Pressure 1033 hPa 00:37 1015 hPa 1033 hPa, 2009 998 hPa, 2010
Mean Pressure 1032 hPa 1012 hPa 1032 hPa, 2009 994 hPa, 2010
Mean Wind Speed n/a (-5.1) 0.0 mph (-5.1) 12.4, 2016 2.7, 2010
Maximum Wind Speed n/a 0.0 mph 22.7, 2016 9.4, 2011
Maximum Gust n/a 0.0 mph 36.9, 2020 13.5, 2010
Mean Wind Direction n/a
Rainfall 0.0 mm 63.6 mm (212%) 4.4 mm, 2010
Maximum Hourly Rain n/a 1.9, 2010
Maximum 10-min Rain n/a 0.8, 2010
Maximum Rain Rate n/a 16, 2010
Minimum Dew Point 0.1 °C 06:03 -2.1 °C 9.1 °C, 2016 -8.4 °C, 2013
Maximum Dew Point 5.2 °C 13:36 3.2 °C 11.0 °C, 2016 -4.5 °C, 2013
Mean Dew Point 2.9 °C 0.8 °C 9.9 °C, 2016 -6.9 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 3.6 °C 1.0 °C 11.4 °C, 2016 -1.2 °C, 2010
Day Maximum (09-21) 13.2 °C 6.3 °C 14.5 °C, 2016 1.7 °C, 2013
Max 10m Temp Rise 0.9 °C 15:15 0.4 °C 0.9 °C, 2009 0.1 °C, 2013
Max 1hr Temp Rise 2.3 °C 13:08 1.0 °C 2.3 °C, 2009 0.2 °C, 2013
Max 1hr Hum Rise 9% 22:31 5% 9%, 2009 2%, 2017
Max 10m Temp Fall 0.9 °C 14:54 0.4 °C 0.9 °C, 2009 0.1 °C, 2011
Max 1hr Temp Fall 2.0 °C 16:17 0.9 °C 2.0 °C, 2009 0.4 °C, 2011
Max 1hr Hum Fall 8% 09:33 6% 15%, 2015 2%, 2011
Max 10m Wind Speed n/a 0.0 mph 17.6, 2016 6.6, 2011
Minimum Feels-like n/a 0.0 °C 12.3, 2016 -6.1, 2013
Maximum Feels-like n/a 0.0 °C 16.2, 2016 0.2, 2013
Mean Feels-like n/a 0.0 °C 14, 2016 -3.2, 2013
Air-frost Hrs 0 hrs 3 hrs 5 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 9.6 °C (+4.0) 5.4 °C (+0.2) 9.6 °C (+4.0), 2009 1.3 °C (-4.3), 2013
Humidity Range 33% 29% 40%, 2014 9%, 2011
Pressure Range 3 hPa 7 hPa 10 hPa, 2019 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8.6 [93%]65 hrs (117%) [35%] 8.6 [93%], 2009 0 [0%], 2011
Wet Hours 0 hrs (0%) [0%] 3, 2010 , 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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