Daily Report for 17th August 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 15.1 °C (+1.9) 02:58 16.7 °C (+3.2) 18.1 °C (+4.9), 2012 10.8 °C (-2.4), 2018
Maximum Temperature 23.2 °C (+0.9) 15:47 27.3 °C (+4.8) 27.6 °C (+5.3), 2012 20.0 °C (-2.3), 2013
Mean Temperature 18.2 °C (+1.4) 21.7 °C (+4.0) 22.2 °C, 2012 15.9 °C, 2011
Minimum Humidity 62% 15:56 50% 62%, 2020 33%, 2012
Maximum Humidity 98% 07:27 88% 98%, 2020 76%, 2012
Mean Humidity 85% 71% 85%, 2020 58%, 2012
Minimum Pressure 1008 hPa 16:09 1014 hPa 1017 hPa, 2018 1004 hPa, 2019
Maximum Pressure 1010 hPa 00:18 1017 hPa 1022 hPa, 2018 1006 hPa, 2019
Mean Pressure 1009 hPa 1016 hPa 1020 hPa, 2018 1005 hPa, 2019
Mean Wind Speed 2.2 mph (-1.8) 3.5 mph (-0.5) 7.6 mph, 2014 1.9 mph, 2015
Maximum Wind Speed 14.2 mph 16:24 11.6 mph 17.6 mph, 2014 9.0 mph, 2015
Maximum Gust 23.0 mph 16:27 17.9 mph 26.8 mph, 2013 12.1 mph, 2011
Mean Wind Direction SW
Rainfall 1.5 mm 22.0 mm (76%) 6.0 mm, 2010
Maximum Hourly Rain 1.2 mm 16:55 5.5 mm, 2010
Maximum 10-min Rain 0.8 mm 16:33 3.3 mm, 2010
Maximum Rain Rate 10 mm/h 16:31 50 mm/h, 2010
Minimum Dew Point 14.1 °C 02:55 13.5 °C 14.1 °C, 2020 4.1 °C, 2014
Maximum Dew Point 17.4 °C 17:43 18.1 °C 17.5 °C, 2012 11.3 °C, 2015
Mean Dew Point 15.6 °C 15.8 °C 15.6 °C, 2020 8.0 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 15.1 °C 02:55 17.0 °C 18.1 °C, 2012 10.8 °C, 2018
Day Maximum (09-21) 23.2 °C 15:48 27.3 °C 27.6 °C, 2012 20.0 °C, 2013
Max 10m Temp Rise 0.7 °C 07:29 0.7 °C 1.0 °C, 2009 0.3 °C, 2010
Max 1hr Temp Rise 2.2 °C 08:06 2.7 °C 3.1 °C, 2018 0.9 °C, 2010
Max 1hr Hum Rise 19% 17:26 10% 19%, 2020 3%, 2015
Max 10m Temp Fall 1.4 °C 16:33 0.7 °C 1.4 °C, 2014 0.3 °C, 2010
Max 1hr Temp Fall 3.3 °C 16:53 2.2 °C 3.3 °C, 2020 1.0 °C, 2010
Max 1hr Hum Fall 11% 14:29 11% 27%, 2014 4%, 2010
Max 10m Wind Speed 10.7 mph 16:30 8.2 mph 13.1 mph, 2014 5.8 mph, 2015
Minimum Feels-like 18.5 °C 02:44 20.3 °C 20.6 °C, 2012 11.8 °C, 2018
Maximum Feels-like 27.8 °C 15:41 32.5 °C 29.9 °C, 2012 20.6 °C, 2015
Mean Feels-like 22.6 °C 26.4 °C 25.0 °C, 2012 17.2 °C, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.1 °C (-0.9) 10.6 °C (+1.6) 12.0 °C (+3.0), 2016 5.2 °C (-3.8), 2010
Humidity Range 36% 38% 49%, 2016 32%, 2010
Pressure Range 2 hPa 3 hPa 10 hPa, 2013 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2.5 [19%]105 hrs (103%) [46%] 12 [91%], 2016 1 [8%], 2011
Wet Hours 1.5
[Mean rain rate: 1.0 mm/h]
12 hrs (59%) [3%] 2.5, 2017 0, 2009
Cloud Cover Mostly Cloudy with periods of Partly Cloudy
Events Thunder
Comments 13, 1630, 1830 Showers, probs with thunder
Extra Comments
Issues Rain gauge blocked, tips come from yesterday
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 22.0 °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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