Daily Report for 18th August 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 16.4 °C (+3.2) 06:36 16.7 °C (+3.2) 20.0 °C (+6.8), 2012 11.4 °C (-1.8), 2014
Maximum Temperature 23.2 °C (+1.0) 16:31 27.1 °C (+4.6) 30.0 °C (+7.8), 2012 17.1 °C (-5.1), 2011
Mean Temperature 19.7 °C (+2.1) 21.6 °C (+3.9) 25.0 °C, 2012 13.7 °C, 2011
Minimum Humidity 64% 13:31 51% 64%, 2018 40%, 2012
Maximum Humidity 89% 02:17 88% 93%, 2011 71%, 2015
Mean Humidity 78% 72% 82%, 2011 53%, 2012
Minimum Pressure 1009 hPa 16:43 1014 hPa 1020 hPa, 2018 1003 hPa, 2019
Maximum Pressure 1011 hPa 22:21 1017 hPa 1022 hPa, 2018 1010 hPa, 2010
Mean Pressure 1010 hPa 1015 hPa 1021 hPa, 2018 1006 hPa, 2019
Mean Wind Speed 5.8 mph (+1.8) 3.6 mph (-0.4) 6.3 mph, 2017 3.1 mph, 2016
Maximum Wind Speed 13.6 mph 12:45 11.7 mph 16.1 mph, 2019 9.2 mph, 2009
Maximum Gust 20.7 mph 18:56 18.1 mph 26.5 mph, 2019 13.6 mph, 2009
Mean Wind Direction SW
Rainfall 0.5 mm 22.5 mm (73%) 14.6 mm, 2011
Maximum Hourly Rain 0.5 mm 14:03 9.9 mm, 2017
Maximum 10-min Rain 0.5 mm 14:03 5.9 mm, 2017
Maximum Rain Rate n/a 66, 2017
Minimum Dew Point 14.4 °C 06:34 13.6 °C 14.4 °C, 2020 5.6 °C, 2014
Maximum Dew Point 17.0 °C 14:57 18.0 °C 17.0 °C, 2020 10.5 °C, 2014
Mean Dew Point 15.6 °C 15.7 °C 15.6 °C, 2020 8.6 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 16.4 °C 06:36 17.0 °C 20.0 °C, 2012 11.4 °C, 2014
Day Maximum (09-21) 23.2 °C 16:32 27.1 °C 30.0 °C, 2012 17.1 °C, 2011
Max 10m Temp Rise 0.6 °C 14:42 0.7 °C 0.8 °C, 2017 0.3 °C, 2011
Max 1hr Temp Rise 1.8 °C 09:28 2.7 °C 2.8 °C, 2010 1.0 °C, 2018
Max 1hr Hum Rise 12% 14:26 10% 20%, 2017 5%, 2018
Max 10m Temp Fall 0.8 °C 13:59 0.7 °C 2.9 °C, 2017 0.2 °C, 2015
Max 1hr Temp Fall 2.0 °C 14:23 2.2 °C 4.4 °C, 2017 0.6 °C, 2015
Max 1hr Hum Fall 7% 09:29 11% 15%, 2016 6%, 2015
Max 10m Wind Speed 10.5 mph 17:32 8.3 mph 12.3 mph, 2019 6.1 mph, 2009
Minimum Feels-like 20.0 °C 06:16 20.3 °C 22.9 °C, 2012 11.5 °C, 2014
Maximum Feels-like 28.3 °C 16:24 32.2 °C 34.9 °C, 2012 18.7 °C, 2011
Mean Feels-like 24.1 °C 26.2 °C 28.7 °C, 2012 15.3 °C, 2011
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.8 °C (-2.3) 10.4 °C (+1.4) 10.0 °C (+0.9), 2012 4.9 °C (-4.2), 2015
Humidity Range 25% 37% 50%, 2010 20%, 2018
Pressure Range 2 hPa 3 hPa 7 hPa, 2019 2 hPa, 2020
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [30%]115 hrs (106%) [47%] 12 [91%], 2012 0 [0%], 2011
Wet Hours 0.5
[Mean rain rate: 1.0 mm/h]
15 hrs (67%) [3.4%] 3, 2019 0, 2009
Cloud Cover am: Partly Cloudy transitioned to Mostly Cloudy
pm: Partly Cloudy
Events None
Comments 1330 Shower
Extra Comments
Issues Rain gauge blocked, no data
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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