Daily Report for 20th September 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.6 °C (+2.8) 05:02 11.9 °C (+0.5) 16.7 °C (+5.9), 2018 8.4 °C (-2.4), 2015
Maximum Temperature 23.9 °C (+6.0) 14:59 22.0 °C (+2.7) 23.9 °C (+6.0), 2020 17.3 °C (-0.6), 2012
Mean Temperature 18.0 °C (+4.4) 16.8 °C (+1.6) 18.6 °C, 2018 13.2 °C, 2012
Minimum Humidity 49% 15:04 54% 92%, 2014 40%, 2019
Maximum Humidity 91% 07:26 90% 96%, 2014 78%, 2012
Mean Humidity 73% 74% 94%, 2014 62%, 2012
Minimum Pressure 1019 hPa 05:01 1020 hPa 1021 hPa, 2015 1000 hPa, 2018
Maximum Pressure 1021 hPa 22:51 1024 hPa 1031 hPa, 2019 1014 hPa, 2018
Mean Pressure 1020 hPa 1022 hPa 1026 hPa, 2019 1010 hPa, 2018
Mean Wind Speed 2.6 mph (-1.3) 2.9 mph (-1.0) 9.6 mph, 2018 1.8 mph, 2016
Maximum Wind Speed 13.6 mph 10:42 11.0 mph 23.0 mph, 2018 7.4 mph, 2013
Maximum Gust 18.4 mph 09:19 18.4 mph 34.6 mph, 2018 9.2 mph, 2013
Mean Wind Direction NE
Rainfall 0.0 mm 2.4 mm (6%) 29.3 mm, 2014
Maximum Hourly Rain n/a 18.7, 2014
Maximum 10-min Rain n/a 7.9, 2014
Maximum Rain Rate n/a 126, 2014
Minimum Dew Point 11.5 °C 01:56 9.3 °C 14.3 °C, 2018 3.0 °C, 2012
Maximum Dew Point 14.5 °C 12:56 14.3 °C 17.1 °C, 2014 8.3 °C, 2012
Mean Dew Point 12.7 °C 12.0 °C 15.6 °C, 2014 5.9 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.6 °C 04:59 12.1 °C 16.7 °C, 2018 8.2 °C, 2017
Day Maximum (09-21) 23.9 °C 15:23 22.0 °C 23.9 °C, 2020 17.3 °C, 2012
Max 10m Temp Rise 0.5 °C 09:37 0.6 °C 0.7 °C, 2013 0.3 °C, 2011
Max 1hr Temp Rise 2.2 °C 11:16 2.6 °C 3.4 °C, 2019 0.8 °C, 2014
Max 1hr Hum Rise 7% 20:14 11% 10%, 2019 1%, 2014
Max 10m Temp Fall 0.4 °C 22:06 0.5 °C 0.6 °C, 2013 0.2 °C, 2014
Max 1hr Temp Fall 1.5 °C 20:26 2.0 °C 2.5 °C, 2013 0.8 °C, 2016
Max 1hr Hum Fall 12% 11:33 11% 18%, 2019 2%, 2014
Max 10m Wind Speed 7.4 mph 09:38 7.6 mph 16.8 mph, 2018 5.5 mph, 2009
Minimum Feels-like 15.7 °C 02:45 12.9 °C 20.4 °C, 2018 7.3 °C, 2012
Maximum Feels-like 26.9 °C 14:36 25.0 °C 26.9 °C, 2020 17.3 °C, 2012
Mean Feels-like 20.6 °C 19.2 °C 22.5 °C, 2018 13.0 °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 10.3 °C (+3.2) 10.1 °C (+2.2) 10.8 °C (+3.7), 2015 3.3 °C (-3.8), 2014
Humidity Range 42% 36% 56%, 2019 4%, 2014
Pressure Range 2 hPa 4 hPa 15 hPa, 2018 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10 [90%]139 hrs (148%) [60%] 11.2 [101%], 2019 0 [0%], 2016
Wet Hours 05.5 hrs (20%) [1.1%] 2, 2011 0, 2009
Cloud Cover Sunny
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 15.0 °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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