Daily Report for 11th September 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.4 °C (+1.9) 06:10 11.1 °C (-0.8) 16.5 °C (+5.0), 2010 9.0 °C (-2.5), 2016
Maximum Temperature 20.7 °C (+1.1) 17:40 19.1 °C (-1.2) 21.7 °C (+2.1), 2018 16.3 °C (-3.3), 2013
Mean Temperature 17.1 °C (+1.5) 15.1 °C (-1.0) 18.7 °C, 2018 13.6 °C, 2013
Minimum Humidity 71% 00:20 54% 76%, 2018 37%, 2012
Maximum Humidity 84% 22:27 86% 94%, 2009 79%, 2012
Mean Humidity 79% 72% 82%, 2018 58%, 2012
Minimum Pressure 1019 hPa 06:42 1018 hPa 1034 hPa, 2009 991 hPa, 2017
Maximum Pressure 1025 hPa 23:57 1024 hPa 1038 hPa, 2009 1001 hPa, 2017
Mean Pressure 1021 hPa 1021 hPa 1036 hPa, 2009 994 hPa, 2017
Mean Wind Speed 6.8 mph (+2.9) 4.7 mph (+0.8) 8.3 mph, 2017 2.5 mph, 2014
Maximum Wind Speed 15.3 mph 11:56 13.1 mph 21.5 mph, 2011 7.4 mph, 2014
Maximum Gust 23.0 mph 10:32 22.1 mph 31.7 mph, 2011 9.8 mph, 2014
Mean Wind Direction SW
Rainfall 0.0 mm 5.6 mm (27%) 7.0 mm, 2017
Maximum Hourly Rain n/a 5, 2017
Maximum 10-min Rain n/a 3.2, 2017
Maximum Rain Rate n/a 48, 2017
Minimum Dew Point 9.5 °C 03:34 6.7 °C 13.6 °C, 2018 1.3 °C, 2012
Maximum Dew Point 17.0 °C 17:13 12.5 °C 17.7 °C, 2018 11.7 °C, 2013
Mean Dew Point 13.3 °C 9.8 °C 15.6 °C, 2018 6.8 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.4 °C 06:12 11.2 °C 16.5 °C, 2010 9.0 °C, 2016
Day Maximum (09-21) 20.7 °C 17:40 19.1 °C 21.7 °C, 2018 16.3 °C, 2013
Max 10m Temp Rise 0.6 °C 11:28 0.6 °C 1.0 °C, 2016 0.3 °C, 2018
Max 1hr Temp Rise 2.2 °C 12:01 2.3 °C 3.7 °C, 2016 1.3 °C, 2018
Max 1hr Hum Rise 5% 14:02 8% 20%, 2015 4%, 2010
Max 10m Temp Fall 0.3 °C 13:26 0.5 °C 0.9 °C, 2016 0.2 °C, 2010
Max 1hr Temp Fall 1.1 °C 21:17 1.5 °C 3.2 °C, 2016 1.1 °C, 2010
Max 1hr Hum Fall 6% 12:05 12% 28%, 2016 4%, 2018
Max 10m Wind Speed 11.6 mph 13:29 9.6 mph 14.4 mph, 2017 4.3 mph, 2014
Minimum Feels-like 14.5 °C 05:44 11.2 °C 19.6 °C, 2018 7.3 °C, 2016
Maximum Feels-like 25.9 °C 17:13 21.0 °C 27.5 °C, 2018 17.4 °C, 2013
Mean Feels-like 20.2 °C 16.4 °C 23.1 °C, 2018 14.7 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.3 °C (-0.8) 8.0 °C (-0.5) 12.5 °C (+4.4), 2016 4.5 °C (-3.6), 2010
Humidity Range 13% 32% 51%, 2015 13%, 2019
Pressure Range 6 hPa 7 hPa 10 hPa, 2017 2 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.2 [10%]53 hrs (99%) [40%] 11.7 [100%], 2016 0 [0%], 2014
Wet Hours 0.58 hrs (53%) [3%] 4, 2013 0, 2009
Cloud Cover am: Overcast
pm: Mostly Cloudy
Events None
Comments smattering of Light Rain am
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 16.0 °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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