Daily Report for 14th May 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.8 °C (+4.0) 03:39 8.2 °C (+1.1) 11.8 °C (+4.0), 2009 3.0 °C (-4.8), 2020
Maximum Temperature 18.3 °C (+2.0) 15:58 17.3 °C (+1.7) 19.8 °C (+3.5), 2017 10.7 °C (-5.6), 2015
Mean Temperature 14.5 °C (+3.0) 12.4 °C (+1.4) 14.9 °C, 2017 8.5 °C, 2020
Minimum Humidity 66% 14:21 46% 72%, 2015 35%, 2018
Maximum Humidity 93% 06:55 84% 97%, 2015 75%, 2011
Mean Humidity 82% 67% 86%, 2015 55%, 2011
Minimum Pressure 1004 hPa 23:40 1017 hPa 1031 hPa, 2019 990 hPa, 2013
Maximum Pressure 1011 hPa 00:03 1021 hPa 1039 hPa, 2019 1010 hPa, 2013
Mean Pressure 1008 hPa 1019 hPa 1035 hPa, 2019 1003 hPa, 2013
Mean Wind Speed n/a (-4.7) 0.0 mph (-4.7) 6.4, 2012 2.9, 2014
Maximum Wind Speed n/a 0.0 mph 17.3, 2013 8.7, 2014
Maximum Gust n/a 0.0 mph 26.6, 2013 13, 2014
Mean Wind Direction n/a
Rainfall trace 2.7 mm (12%) 14.4, 2015
Maximum Hourly Rain n/a 3, 2015
Maximum 10-min Rain n/a 1, 2015
Maximum Rain Rate n/a 20, 2017
Minimum Dew Point 9.7 °C 23:54 3.1 °C 9.7 °C, 2009 0.1 °C, 2020
Maximum Dew Point 12.6 °C 12:55 8.8 °C 12.6 °C, 2009 3.6 °C, 2020
Mean Dew Point 11.4 °C 6.0 °C 11.4 °C, 2009 1.9 °C, 2020
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 11.8 °C 8.3 °C 12.2 °C, 2017 3.0 °C, 2020
Day Maximum (09-21) 18.3 °C 17.3 °C 19.8 °C, 2017 10.7 °C, 2015
Max 10m Temp Rise 0.5 °C 13:27 0.7 °C 0.8 °C, 2020 0.3 °C, 2015
Max 1hr Temp Rise 1.7 °C 13:56 2.3 °C 2.8 °C, 2019 0.9 °C, 2015
Max 1hr Hum Rise 4% 15:16 8% 21%, 2017 4%, 2009
Max 10m Temp Fall 0.3 °C 16:27 0.5 °C 1.3 °C, 2017 0.3 °C, 2009
Max 1hr Temp Fall 1.1 °C 19:37 1.6 °C 3.7 °C, 2017 1.0 °C, 2015
Max 1hr Hum Fall 9% 14:09 13% 24%, 2018 7%, 2015
Max 10m Wind Speed n/a 0.0 mph 12.2, 2013 6.1, 2014
Minimum Feels-like n/a 0.0 °C 10.4, 2017 -1.3, 2020
Maximum Feels-like n/a 0.0 °C 20.1, 2018 10.7, 2015
Mean Feels-like n/a 0.0 °C 15.3, 2017 7.2, 2020
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.5 °C (-2.0) 9.1 °C (+0.6) 12.3 °C (+3.8), 2014 2.7 °C (-5.8), 2015
Humidity Range 27% 37% 58%, 2014 25%, 2015
Pressure Range 7 hPa 5 hPa 20 hPa, 2013 2 hPa, 2020
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.1 [1%]80 hrs (95%) [41%] 14.1 [100%], 2019 0 [0%], 2015
Wet Hours 0.25 hrs (28%) [1.5%] 14, 2015 0, 2010
Cloud Cover not available
Events None
Comments Light 2200 Showerower
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