Daily Report for 9th September 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.6 °C (-1.1) 00:05 10.9 °C (-1.1) 15.7 °C (+4.0), 2011 9.3 °C (-2.4), 2013
Maximum Temperature 15.8 °C (-4.2) 16:32 18.9 °C (-1.6) 27.6 °C (+7.6), 2012 12.9 °C (-7.1), 2013
Mean Temperature 13.9 °C (-2.7) 14.9 °C (-1.3) 18.5 °C, 2011 11.1 °C, 2013
Minimum Humidity 64% 01:09 51% 84%, 2013 30%, 2012
Maximum Humidity 83% 08:44 85% 96%, 2011 82%, 2009
Mean Humidity 76% 71% 92%, 2013 60%, 2012
Minimum Pressure 1012 hPa 16:37 1018 hPa 1021 hPa, 2009 996 hPa, 2017
Maximum Pressure 1020 hPa 00:02 1025 hPa 1033 hPa, 2009 1002 hPa, 2017
Mean Pressure 1014 hPa 1021 hPa 1027 hPa, 2009 998 hPa, 2017
Mean Wind Speed 3.7 mph (-0.2) 4.7 mph (+0.8) 11.4 mph, 2016 1.7 mph, 2014
Maximum Wind Speed 10.3 mph 15:55 13.1 mph 21.9 mph, 2016 7.8 mph, 2014
Maximum Gust 17.3 mph 15:58 22.5 mph 33.9 mph, 2016 10.7 mph, 2014
Mean Wind Direction S
Rainfall trace 5.6 mm (33%) 6.8, 2013
Maximum Hourly Rain n/a 3.6, 2011
Maximum 10-min Rain n/a 1.9, 2011
Maximum Rain Rate n/a 20, 2011
Minimum Dew Point 5.6 °C 00:27 6.2 °C 14.6 °C, 2011 5.4 °C, 2009
Maximum Dew Point 11.7 °C 14:10 12.0 °C 17.7 °C, 2011 11.7 °C, 2019
Mean Dew Point 9.8 °C 9.3 °C 15.9 °C, 2011 9.1 °C, 2009
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 10.1 °C * 22:30 11.0 °C 15.7 °C, 2011 9.3 °C, 2013
Day Maximum (09-21) 15.8 °C 16:33 18.9 °C 27.6 °C, 2012 12.9 °C, 2013
Max 10m Temp Rise 0.5 °C 00:22 0.6 °C 0.9 °C, 2012 0.3 °C, 2011
Max 1hr Temp Rise 2.1 °C 01:07 2.2 °C 4.7 °C, 2012 1.0 °C, 2013
Max 1hr Hum Rise 6% 02:18 9% 19%, 2017 3%, 2011
Max 10m Temp Fall 0.2 °C 16:45 0.5 °C 0.9 °C, 2017 0.2 °C, 2013
Max 1hr Temp Fall 0.6 °C 17:31 1.6 °C 2.8 °C, 2012 0.6 °C, 2019
Max 1hr Hum Fall 14% 01:03 12% 26%, 2015 5%, 2013
Max 10m Wind Speed 7.7 mph 10:50 9.4 mph 17.2 mph, 2016 5.6 mph, 2014
Minimum Feels-like 10.6 °C 00:00 10.8 °C 19.4 °C, 2011 7.8 °C, 2013
Maximum Feels-like 17.7 °C 16:31 20.4 °C 28.4 °C, 2012 15.2 °C, 2013
Mean Feels-like 15.1 °C 15.9 °C 23.1 °C, 2011 12.3 °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 5.2 °C (-3.1) 8.0 °C (-0.6) 17.5 °C (+9.2), 2012 3.6 °C (-4.7), 2013
Humidity Range 19% 34% 54%, 2012 11%, 2013
Pressure Range 8 hPa 7 hPa 12 hPa, 2009 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]47 hrs (106%) [43%] 10 [84%], 2012 0 [0%], 2019
Wet Hours 27.5 hrs (61%) [3.5%] 5, 2013 0, 2009
Cloud Cover Overcast
Events None
Comments Slight Rain spells, mostly pm
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 17.0 °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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