Daily Report for 29th September 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.7 °C (+2.5) 20:28 11.3 °C (+0.2) 14.0 °C (+3.8), 2011 6.2 °C (-4.0), 2018
Maximum Temperature 17.6 °C (+0.8) 15:12 20.5 °C (+1.8) 26.9 °C (+10.1), 2011 15.2 °C (-1.6), 2012
Mean Temperature 15.2 °C (+1.7) 15.7 °C (+1.0) 19.6 °C, 2011 11.5 °C, 2012
Minimum Humidity 67% 17:50 56% 83%, 2014 42%, 2011
Maximum Humidity 95% 07:20 90% 96%, 2010 84%, 2016
Mean Humidity 87% 76% 90%, 2019 70%, 2016
Minimum Pressure 1015 hPa 05:27 1016 hPa 1032 hPa, 2015 993 hPa, 2019
Maximum Pressure 1017 hPa 10:51 1021 hPa 1036 hPa, 2015 1008 hPa, 2013
Mean Pressure 1016 hPa 1018 hPa 1034 hPa, 2015 998 hPa, 2019
Mean Wind Speed 1.2 mph (-2.7) 3.0 mph (-0.9) 11.4 mph, 2016 0.9 mph, 2018
Maximum Wind Speed 8.5 mph 11:16 11.6 mph 22.7 mph, 2016 7.2 mph, 2018
Maximum Gust 11.5 mph 11:16 19.6 mph 40.3 mph, 2016 10.3 mph, 2018
Mean Wind Direction W
Rainfall 4.4 mm 16.4 mm (30%) 11.7 mm, 2010
Maximum Hourly Rain 1.1 mm 07:17 3.5 mm, 2010
Maximum 10-min Rain 0.5 mm 09:05 1.8 mm, 2017
Maximum Rain Rate 18 mm/h 05:59 26 mm/h, 2017
Minimum Dew Point 10.6 °C 17:50 8.6 °C 11.5 °C, 2014 2.7 °C, 2012
Maximum Dew Point 14.7 °C 07:56 13.5 °C 17.4 °C, 2011 8.2 °C, 2018
Mean Dew Point 13.0 °C 11.2 °C 14.1 °C, 2017 6.0 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 14.3 °C * 21:16 11.7 °C 16.8 °C, 2016 6.2 °C, 2018
Day Maximum (09-21) 17.6 °C 15:42 20.5 °C 26.9 °C, 2011 15.2 °C, 2012
Max 10m Temp Rise 0.4 °C 12:06 0.7 °C 0.9 °C, 2018 0.3 °C, 2010
Max 1hr Temp Rise 1.0 °C 12:12 2.4 °C 3.7 °C, 2011 0.8 °C, 2019
Max 1hr Hum Rise 12% 18:50 11% 13%, 2018 3%, 2013
Max 10m Temp Fall 0.5 °C 18:38 0.5 °C 1.0 °C, 2017 0.2 °C, 2014
Max 1hr Temp Fall 2.6 °C 19:29 2.0 °C 3.4 °C, 2018 0.9 °C, 2014
Max 1hr Hum Fall 8% 13:02 11% 18%, 2012 6%, 2019
Max 10m Wind Speed 4.6 mph 11:48 7.9 mph 17.4 mph, 2016 4.6 mph, 2020
Minimum Feels-like 14.4 °C 20:17 11.8 °C 16.1 °C, 2011 6.2 °C, 2018
Maximum Feels-like 20.6 °C 15:12 23.2 °C 30.0 °C, 2011 15.2 °C, 2012
Mean Feels-like 18.1 °C 17.7 °C 22.8 °C, 2011 11.4 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.9 °C (-1.7) 9.2 °C (+1.6) 12.9 °C (+6.3), 2011 4.1 °C (-2.5), 2013
Humidity Range 28% 34% 54%, 2011 13%, 2014
Pressure Range 2 hPa 5 hPa 15 hPa, 2019 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [38%]179 hrs (134%) [54%] 10.61 [100%], 2011 0.1 [1%], 2010
Wet Hours 7
[Mean rain rate: 0.6 mm/h]
21 hrs (52%) [2.9%] 10, 2010 0, 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 13.0 °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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