Daily Report for 21st May 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.4 °C (+4.5) 05:17 7.1 °C (-0.6) 13.5 °C (+4.6), 2016 5.5 °C (-3.4), 2015
Maximum Temperature 27.4 °C (+10.1) 16:27 18.9 °C (+2.7) 27.4 °C (+10.1), 2020 15.9 °C (-1.4), 2013
Mean Temperature 21.4 °C (+7.3) 13.4 °C (+1.1) 21.4 °C, 2020 12.1 °C, 2012
Minimum Humidity 28% 15:34 43% 71%, 2012 28%, 2020
Maximum Humidity 86% 05:49 85% 93%, 2012 81%, 2015
Mean Humidity 55% 64% 83%, 2012 55%, 2011
Minimum Pressure 1017 hPa 23:59 1018 hPa 1029 hPa, 2010 1001 hPa, 2014
Maximum Pressure 1022 hPa 00:36 1023 hPa 1032 hPa, 2010 1010 hPa, 2012
Mean Pressure 1020 hPa 1020 hPa 1030 hPa, 2010 1008 hPa, 2014
Mean Wind Speed 2.5 mph (-2.2) 4.2 mph (-0.5) 5.4 mph, 2011 2.2 mph, 2018
Maximum Wind Speed 10.9 mph 19:59 12.5 mph 14.5 mph, 2011 8.4 mph, 2010
Maximum Gust 17.3 mph 20:04 19.1 mph 25.8 mph, 2016 12.0 mph, 2010
Mean Wind Direction SW
Rainfall 0.0 mm 4.6 mm (13%) 0.4 mm, 2014
Maximum Hourly Rain n/a 0.4, 2014
Maximum 10-min Rain n/a 0.4, 2014
Maximum Rain Rate n/a 1.5, 2014
Minimum Dew Point 6.8 °C 23:43 3.2 °C 9.5 °C, 2010 1.2 °C, 2015
Maximum Dew Point 15.5 °C 12:22 8.8 °C 15.5 °C, 2020 7.6 °C, 2015
Mean Dew Point 11.3 °C 6.2 °C 12.2 °C, 2010 3.8 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.4 °C 05:10 7.6 °C 13.5 °C, 2016 5.5 °C, 2015
Day Maximum (09-21) 27.4 °C 16:53 18.9 °C 27.4 °C, 2020 14.1 °C, 2013
Max 10m Temp Rise 0.8 °C 08:07 0.7 °C 1.7 °C, 2010 0.4 °C, 2012
Max 1hr Temp Rise 3.2 °C 08:56 2.9 °C 5.7 °C, 2011 1.0 °C, 2016
Max 1hr Hum Rise 10% 02:13 10% 14%, 2018 4%, 2012
Max 10m Temp Fall 0.6 °C 01:23 0.7 °C 1.0 °C, 2010 0.2 °C, 2012
Max 1hr Temp Fall 2.4 °C 02:13 2.2 °C 2.4 °C, 2020 0.7 °C, 2012
Max 1hr Hum Fall 14% 13:46 14% 25%, 2010 5%, 2012
Max 10m Wind Speed 8.5 mph 20:05 9.1 mph 9.4 mph, 2011 6.6 mph, 2018
Minimum Feels-like 15.1 °C 04:53 5.2 °C 15.1 °C, 2020 3.0 °C, 2015
Maximum Feels-like 29.8 °C 13:38 19.8 °C 29.8 °C, 2020 17.9 °C, 2012
Mean Feels-like 23.3 °C 13.3 °C 23.3 °C, 2020 12.5 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 14.0 °C (+5.6) 11.8 °C (+3.3) 14.6 °C (+6.2), 2015 4.2 °C (-4.2), 2016
Humidity Range 58% 43% 58%, 2020 17%, 2013
Pressure Range 5 hPa 5 hPa 10 hPa, 2014 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 12 [83%]196 hrs (154%) [67%] 13.5 [94%], 2011 0.4 [3%], 2016
Wet Hours 02 hrs (7%) [0.4%] 0.5, 2014 0, 2009
Cloud Cover Sunny with periods of Hazy
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 5.0 °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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