Daily Report for 23rd September 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.3 °C (+3.7) 07:28 12.2 °C (+0.8) 14.4 °C (+3.8), 2019 8.1 °C (-2.6), 2014
Maximum Temperature 17.9 °C (+0.3) 15:11 19.3 °C (+0.1) 19.9 °C (+2.3), 2019 11.9 °C (-5.7), 2012
Mean Temperature 16.3 °C (+2.0) 15.4 °C (+0.4) 16.3 °C, 2009 10.1 °C, 2012
Minimum Humidity 73% 17:17 57% 77%, 2013 44%, 2016
Maximum Humidity 91% 08:00 90% 98%, 2012 82%, 2017
Mean Humidity 80% 74% 91%, 2013 63%, 2016
Minimum Pressure 1025 hPa 11:08 1018 hPa 1025 hPa, 2009 997 hPa, 2012
Maximum Pressure 1027 hPa 11:00 1024 hPa 1031 hPa, 2018 1013 hPa, 2019
Mean Pressure 1026 hPa 1021 hPa 1026 hPa, 2009 1008 hPa, 2010
Mean Wind Speed 4.3 mph (+0.4) 5.5 mph (+1.6) 6.3 mph, 2019 1.2 mph, 2013
Maximum Wind Speed 8.9 mph 12.5 mph 14.3 mph, 2012 5.9 mph, 2013
Maximum Gust 13.4 mph 15:24 19.0 mph 25.3 mph, 2019 7.6 mph, 2013
Mean Wind Direction W
Rainfall 0.0 mm 35.9 mm (82%) 21.8 mm, 2012
Maximum Hourly Rain n/a 6.4, 2012
Maximum 10-min Rain n/a 2, 2012
Maximum Rain Rate n/a 30, 2012
Minimum Dew Point 10.2 °C 23:49 8.1 °C 12.1 °C, 2013 3.7 °C, 2012
Maximum Dew Point 14.2 °C 02:22 13.1 °C 15.9 °C, 2013 8.7 °C, 2018
Mean Dew Point 12.9 °C 10.6 °C 14.2 °C, 2013 7.4 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.3 °C 12.3 °C 14.7 °C, 2010 8.1 °C, 2014
Day Maximum (09-21) 17.9 °C 19.3 °C 19.9 °C, 2019 11.8 °C, 2012
Max 10m Temp Rise n/a 06:36 0.2 °C 0.8, 2011 0.2, 2018
Max 1hr Temp Rise n/a 06:36 0.4 °C 3.8, 2016 1, 2018
Max 1hr Hum Rise n/a 07:28 2% 13, 2019 5, 2011
Max 10m Temp Fall n/a 06:45 0.2 °C 0.5, 2010 0.2, 2015
Max 1hr Temp Fall n/a 07:28 0.3 °C 2.3, 2016 0.7, 2015
Max 1hr Hum Fall n/a 10:36 3% 15, 2015 2, 2012
Max 10m Wind Speed 6.3 mph 09:17 8.8 mph 11.0 mph, 2012 4.1 mph, 2013
Minimum Feels-like 16.1 °C 23:53 13.1 °C 16.6 °C, 2019 6.0 °C, 2012
Maximum Feels-like 20.8 °C 15:02 21.5 °C 23.0 °C, 2013 14.0 °C, 2012
Mean Feels-like 19.1 °C 17.0 °C 19.3 °C, 2013 10.4 °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 3.6 °C (-3.4) 7.2 °C (-0.7) 11.1 °C (+4.1), 2016 3.6 °C (-3.4), 2009
Humidity Range 18% 33% 47%, 2014 17%, 2010
Pressure Range 2 hPa 6 hPa 22 hPa, 2012 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]87 hrs (81%) [33%] 10 [91%], 2016 0 [0%], 2009
Wet Hours 017 hrs (54%) [3.1%] 10, 2012 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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Webcam Summary of Cloud Conditions


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Wind rose