Daily Report for 24th September 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.7 °C (+0.1) 07:35 12.1 °C (+0.8) 14.7 °C (+4.1), 2019 6.0 °C (-4.6), 2018
Maximum Temperature 18.9 °C (+1.4) 15:01 19.3 °C (+0.2) 22.5 °C (+5.0), 2016 13.6 °C (-3.9), 2010
Mean Temperature 14.3 °C (+0.8) 15.3 °C (+0.5) 18.0 °C, 2016 10.6 °C, 2018
Minimum Humidity 51% 14:45 57% 80%, 2019 44%, 2017
Maximum Humidity 89% 08:34 90% 98%, 2012 81%, 2016
Mean Humidity 70% 74% 91%, 2019 64%, 2016
Minimum Pressure 1025 hPa 10:16 1018 hPa 1031 hPa, 2018 985 hPa, 2012
Maximum Pressure 1027 hPa 12:37 1024 hPa 1039 hPa, 2018 996 hPa, 2012
Mean Pressure 1026 hPa 1021 hPa 1036 hPa, 2018 989 hPa, 2012
Mean Wind Speed 2.7 mph (-1.2) 5.4 mph (+1.5) 8.6 mph, 2016 1.3 mph, 2013
Maximum Wind Speed 7.4 mph 12.3 mph 22.9 mph, 2016 6.0 mph, 2013
Maximum Gust 10.5 mph 16:45 18.6 mph 35.5 mph, 2016 7.6 mph, 2013
Mean Wind Direction NW
Rainfall 0.0 mm 35.9 mm (79%) 32.0 mm, 2019
Maximum Hourly Rain n/a 10.3, 2019
Maximum 10-min Rain n/a 4.4, 2019
Maximum Rain Rate n/a 66, 2019
Minimum Dew Point 6.9 °C 23:42 8.0 °C 13.5 °C, 2019 3.6 °C, 2018
Maximum Dew Point 10.6 °C 10:04 13.0 °C 17.3 °C, 2013 6.8 °C, 2018
Mean Dew Point 8.7 °C 10.5 °C 15.0 °C, 2019 5.4 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.7 °C 12.3 °C 15.7 °C, 2019 6.1 °C, 2018
Day Maximum (09-21) 18.9 °C 19.3 °C 22.5 °C, 2016 13.6 °C, 2010
Max 10m Temp Rise n/a 07:18 0.2 °C 0.9, 2011 0.3, 2010
Max 1hr Temp Rise n/a 07:18 0.4 °C 4, 2011 1, 2010
Max 1hr Hum Rise n/a 08:17 2% 17, 2015 3, 2010
Max 10m Temp Fall n/a 07:27 0.2 °C 1.2, 2019 0.2, 2016
Max 1hr Temp Fall n/a 08:17 0.3 °C 2.7, 2018 0.8, 2010
Max 1hr Hum Fall n/a 13:01 2% 21, 2014 9, 2019
Max 10m Wind Speed 4.8 mph 13:50 8.7 mph 18.6 mph, 2016 3.9 mph, 2013
Minimum Feels-like 11.4 °C 07:15 13.0 °C 17.8 °C, 2019 4.1 °C, 2018
Maximum Feels-like 19.8 °C 14:55 21.5 °C 26.0 °C, 2013 15.9 °C, 2018
Mean Feels-like 15.0 °C 16.9 °C 20.5 °C, 2019 10.2 °C, 2018
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.2 °C (+1.3) 7.2 °C (-0.6) 12.1 °C (+5.2), 2011 3.8 °C (-3.1), 2012
Humidity Range 38% 33% 51%, 2017 15%, 2019
Pressure Range 2 hPa 6 hPa 13 hPa, 2010 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8 [73%]95 hrs (85%) [34%] 11 [101%], 2018 0.5 [5%], 2010
Wet Hours 017 hrs (52%) [3%] 14, 2019 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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