Daily Report for 20th March 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.6 °C (-0.4) 23:56 3.5 °C (+0.3) 9.3 °C (+5.4), 2019 0.7 °C (-3.2), 2018
Maximum Temperature 12.9 °C (+2.2) 14:50 12.5 °C (+2.6) 14.4 °C (+3.7), 2012 5.8 °C (-4.9), 2013
Mean Temperature 8.2 °C (+0.9) 8.0 °C (+1.4) 11.3 °C, 2010 3.4 °C, 2013
Minimum Humidity 47% 16:14 53% 92%, 2010 47%, 2009
Maximum Humidity 89% 06:32 93% 98%, 2010 79%, 2011
Mean Humidity 68% 73% 96%, 2010 65%, 2012
Minimum Pressure 1031 hPa 17:30 1011 hPa 1034 hPa, 2012 999 hPa, 2013
Maximum Pressure 1033 hPa 10:20 1019 hPa 1036 hPa, 2012 1006 hPa, 2010
Mean Pressure 1032 hPa 1015 hPa 1035 hPa, 2012 1004 hPa, 2010
Mean Wind Speed n/a (-5.2) 0.0 mph (-5.2) 10, 2014 3.3, 2016
Maximum Wind Speed n/a 0.0 mph 21.9, 2014 8.1, 2016
Maximum Gust n/a 0.0 mph 30.4, 2014 13.2, 2011
Mean Wind Direction n/a
Rainfall 0.0 mm 24.2 mm (85%) 3.8 mm, 2010
Maximum Hourly Rain n/a 1.2, 2014
Maximum 10-min Rain n/a 0.6, 2014
Maximum Rain Rate n/a 3, 2017
Minimum Dew Point 0.5 °C 20:03 0.6 °C 7.2 °C, 2019 -2.9 °C, 2011
Maximum Dew Point 4.9 °C 11:45 6.0 °C 12.0 °C, 2010 2.3 °C, 2018
Mean Dew Point 2.1 °C 3.0 °C 10.7 °C, 2010 -0.5 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 3.6 °C 3.8 °C 11.0 °C, 2017 0.5 °C, 2018
Day Maximum (09-21) 12.9 °C 12.5 °C 14.4 °C, 2012 5.8 °C, 2013
Max 10m Temp Rise 1.3 °C 12:27 0.3 °C 1.3 °C, 2009 0.2 °C, 2010
Max 1hr Temp Rise 2.5 °C 13:14 0.8 °C 3.4 °C, 2012 0.5 °C, 2010
Max 1hr Hum Rise 8% 21:03 2% 11%, 2014 3%, 2010
Max 10m Temp Fall 0.7 °C 12:18 0.3 °C 0.7 °C, 2009 0.2 °C, 2019
Max 1hr Temp Fall 1.9 °C 19:32 0.7 °C 2.4 °C, 2012 0.6 °C, 2019
Max 1hr Hum Fall 17% 13:17 3% 20%, 2018 3%, 2010
Max 10m Wind Speed n/a 0.0 mph 17.2, 2014 5.8, 2016
Minimum Feels-like n/a 0.0 °C 6.5, 2019 -4, 2018
Maximum Feels-like n/a 0.0 °C 14.9, 2010 4.7, 2013
Mean Feels-like n/a 0.0 °C 12.7, 2010 1.1, 2018
Air-frost Hrs 0 hrs 0.0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 9.3 °C (+2.6) 8.9 °C (+2.3) 11.3 °C (+4.6), 2011 3.6 °C (-3.1), 2019
Humidity Range 42% 40% 42%, 2009 6%, 2010
Pressure Range 2 hPa 8 hPa 17 hPa, 2013 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10.9 [100%]114 hrs (172%) [55%] 10.9 [100%], 2009 0 [0%], 2010
Wet Hours 0 hrs (0%) [0%] 6, 2010 , 2009
Cloud Cover not available
Events Maximum possible sunshine
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