Daily Report for 19th August 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 15.3 °C (+2.2) 04:51 16.6 °C (+3.1) 17.7 °C (+4.6), 2012 9.1 °C (-4.0), 2011
Maximum Temperature 20.1 °C (-2.1) 23:53 26.7 °C (+4.3) 29.5 °C (+7.3), 2012 18.1 °C (-4.1), 2014
Mean Temperature 18.1 °C (+0.0) 21.4 °C (+3.7) 23.6 °C, 2012 13.8 °C, 2014
Minimum Humidity 85% 00:03 53% 85%, 2020 35%, 2009
Maximum Humidity 95% 20:35 89% 97%, 2011 76%, 2014
Mean Humidity 92% 73% 92%, 2020 56%, 2013
Minimum Pressure 1000 hPa 23:20 1013 hPa 1018 hPa, 2018 1000 hPa, 2020
Maximum Pressure 1011 hPa 00:01 1017 hPa 1026 hPa, 2013 1009 hPa, 2016
Mean Pressure 1005 hPa 1015 hPa 1019 hPa, 2018 1005 hPa, 2020
Mean Wind Speed 3.4 mph (-0.6) 3.6 mph (-0.4) 6.8 mph, 2018 2.6 mph, 2012
Maximum Wind Speed 9.4 mph 14:41 11.6 mph 22.3 mph, 2016 9.2 mph, 2012
Maximum Gust 19.6 mph 12:53 18.2 mph 30.6 mph, 2016 12.5 mph, 2013
Mean Wind Direction S
Rainfall 10.0 mm 32.5 mm (100%) 10.0 mm, 2020
Maximum Hourly Rain 3.5 mm 17:00 3.5 mm, 2020
Maximum 10-min Rain 0.5 mm 16:45 0.9 mm, 2015
Maximum Rain Rate 10 mm/h 16:43 18 mm/h, 2015
Minimum Dew Point 13.9 °C 04:16 13.6 °C 14.5 °C, 2018 4.1 °C, 2014
Maximum Dew Point 19.1 °C 23:53 18.1 °C 19.8 °C, 2012 8.5 °C, 2014
Mean Dew Point 16.8 °C 15.8 °C 16.8 °C, 2020 5.7 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 15.3 °C 04:52 16.9 °C 17.7 °C, 2012 9.1 °C, 2011
Day Maximum (09-21) * 19.4 °C * 20:47 26.7 °C 29.5 °C, 2012 18.1 °C, 2014
Max 10m Temp Rise 0.3 °C 08:25 0.7 °C 0.9 °C, 2012 0.2 °C, 2016
Max 1hr Temp Rise 1.2 °C 08:49 2.6 °C 3.2 °C, 2012 0.7 °C, 2016
Max 1hr Hum Rise 3% 01:01 9% 16%, 2012 3%, 2020
Max 10m Temp Fall 0.3 °C 03:01 0.6 °C 1.0 °C, 2019 0.3 °C, 2020
Max 1hr Temp Fall 1.1 °C 03:41 2.1 °C 2.6 °C, 2013 1.1 °C, 2020
Max 1hr Hum Fall 3% 07:29 11% 17%, 2013 3%, 2020
Max 10m Wind Speed 7.6 mph 12:27 8.3 mph 16.2 mph, 2016 6.7 mph, 2012
Minimum Feels-like 18.7 °C 04:28 20.2 °C 22.3 °C, 2012 7.9 °C, 2011
Maximum Feels-like 26.9 °C 23:48 32.0 °C 34.7 °C, 2012 18.1 °C, 2014
Mean Feels-like 23.4 °C 26.1 °C 28.7 °C, 2012 13.8 °C, 2014
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.8 °C (-4.3) 10.1 °C (+1.1) 14.6 °C (+5.5), 2009 3.1 °C (-6.0), 2016
Humidity Range 10% 36% 52%, 2009 9%, 2016
Pressure Range 10 hPa 4 hPa 14 hPa, 2013 4 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]115 hrs (101%) [45%] 10.5 [80%], 2009 0 [0%], 2020
Wet Hours 8
[Mean rain rate: 1.2 mm/h]
23 hrs (97%) [5%] 8, 2020 0, 2009
Cloud Cover Overcast
Events None
Comments day Rain
Extra Comments
Issues Rain gauge blocked, no data. Backfilled from St James
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 21.0 °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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