Daily Report for 19th September 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.3 °C (+1.4) 07:16 12.1 °C (+0.6) 16.9 °C (+6.0), 2018 6.9 °C (-4.0), 2012
Maximum Temperature 22.4 °C (+4.3) 15:45 19.3 °C (-0.3) 23.7 °C (+5.6), 2020 14.7 °C (-3.4), 2017
Mean Temperature 16.7 °C (+2.8) 15.3 °C (+0.2) 19.0 °C, 2018 10.9 °C, 2017
Minimum Humidity 65% 16:33 56% 70%, 2014 38%, 2012
Maximum Humidity 93% 08:34 90% 96%, 2014 80%, 2010
Mean Humidity 80% 74% 88%, 2014 58%, 2012
Minimum Pressure 1015 hPa 10:23 1017 hPa 1030 hPa, 2019 1007 hPa, 2013
Maximum Pressure 1018 hPa 23:38 1023 hPa 1033 hPa, 2019 1013 hPa, 2013
Mean Pressure 1016 hPa 1020 hPa 1032 hPa, 2019 1010 hPa, 2013
Mean Wind Speed 2.2 mph (-1.7) 5.7 mph (+1.8) 9.6 mph, 2018 1.3 mph, 2015
Maximum Wind Speed 6.3 mph 13.1 mph 24.1 mph, 2018 6.3 mph, 2009
Maximum Gust 8.7 mph 00:01 19.9 mph 40.3 mph, 2018 8.1 mph, 2015
Mean Wind Direction NE
Rainfall 0.0 mm 35.9 mm (99%) 5.4 mm, 2014
Maximum Hourly Rain n/a 4.7, 2014
Maximum 10-min Rain n/a 3.6, 2014
Maximum Rain Rate n/a 66, 2014
Minimum Dew Point 10.4 °C 00:03 8.0 °C 14.7 °C, 2014 1.5 °C, 2012
Maximum Dew Point 16.2 °C 13:45 13.0 °C 19.0 °C, 2014 6.2 °C, 2012
Mean Dew Point 13.1 °C 10.4 °C 16.3 °C, 2014 3.4 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.3 °C 12.3 °C 17.1 °C, 2018 6.9 °C, 2012
Day Maximum (09-21) 22.4 °C 19.3 °C 23.7 °C, 2020 14.7 °C, 2017
Max 10m Temp Rise n/a 12:10 0.3 °C 0.9, 2019 0.4, 2016
Max 1hr Temp Rise n/a 12:54 0.5 °C 4.6, 2019 1.2, 2010
Max 1hr Hum Rise n/a 23:06 3% 12, 2013 5, 2010
Max 10m Temp Fall n/a 11:59 0.2 °C 0.8, 2012 0.2, 2010
Max 1hr Temp Fall n/a 12:01 0.4 °C 2.7, 2017 0.8, 2010
Max 1hr Hum Fall n/a 12:54 3% 20, 2019 4, 2010
Max 10m Wind Speed 5.0 mph 00:01 9.3 mph 17.8 mph, 2018 3.6 mph, 2015
Minimum Feels-like 14.0 °C 07:12 12.9 °C 20.5 °C, 2018 4.7 °C, 2012
Maximum Feels-like 27.0 °C 15:38 21.5 °C 29.4 °C, 2014 15.6 °C, 2017
Mean Feels-like 19.7 °C 16.8 °C 23.3 °C, 2014 11.1 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 10.1 °C (+2.9) 7.2 °C (-0.8) 13.0 °C (+5.8), 2019 4.9 °C (-2.3), 2018
Humidity Range 28% 33% 45%, 2020 18%, 2010
Pressure Range 3 hPa 6 hPa 9 hPa, 2011 2 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3 [27%]77 hrs (86%) [35%] 11.3 [101%], 2019 0.3 [3%], 2010
Wet Hours 017 hrs (66%) [3.8%] 3, 2013 0, 2009
Cloud Cover not available
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 0.0 °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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Daily Graph of Conditions

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Wind rose