Daily Report for 29th August 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.1 °C (-3.4) 06:36 14.1 °C (+0.9) 16.7 °C (+4.2), 2017 9.1 °C (-3.4), 2009
Maximum Temperature 19.3 °C (-2.1) 16:55 22.6 °C (+0.3) 25.3 °C (+3.9), 2017 14.7 °C (-6.7), 2020
Mean Temperature 14.1 °C (-2.8) 17.9 °C (+0.6) 20.6 °C, 2017 12.6 °C, 2020
Minimum Humidity 41% 17:45 52% 73%, 2020 41%, 2009
Maximum Humidity 93% 07:32 90% 95%, 2018 80%, 2017
Mean Humidity 66% 73% 84%, 2020 63%, 2013
Minimum Pressure 1017 hPa 01:02 1014 hPa 1020 hPa, 2013 1003 hPa, 2020
Maximum Pressure 1022 hPa 11:39 1018 hPa 1024 hPa, 2016 1013 hPa, 2014
Mean Pressure 1020 hPa 1016 hPa 1022 hPa, 2013 1009 hPa, 2020
Mean Wind Speed 5.5 mph (+1.5) 4.0 mph (-0.0) 7.2 mph, 2014 1.8 mph, 2018
Maximum Wind Speed 13.8 mph 10.9 mph 18.7 mph, 2012 7.0 mph, 2017
Maximum Gust 21.0 mph 17:28 16.2 mph 26.5 mph, 2020 12.5 mph, 2015
Mean Wind Direction SW
Rainfall 0.0 mm 42.1 mm (85%) 9.9 mm, 2018
Maximum Hourly Rain n/a 4, 2018
Maximum 10-min Rain n/a 2, 2012
Maximum Rain Rate n/a 60, 2012
Minimum Dew Point 4.6 °C 19:58 10.2 °C 12.2 °C, 2017 3.0 °C, 2010
Maximum Dew Point 10.0 °C 09:35 15.3 °C 15.6 °C, 2016 10.0 °C, 2009
Mean Dew Point 7.2 °C 12.7 °C 13.5 °C, 2017 7.2 °C, 2009
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 9.1 °C 14.2 °C 16.7 °C, 2017 9.1 °C, 2009
Day Maximum (09-21) 19.3 °C 22.6 °C 25.3 °C, 2017 14.7 °C, 2020
Max 10m Temp Rise n/a 09:00 0.5 °C 0.8, 2013 0.3, 2020
Max 1hr Temp Rise n/a 09:50 1.4 °C 3, 2013 1.2, 2020
Max 1hr Hum Rise n/a 23:20 7% 21, 2010 5, 2011
Max 10m Temp Fall n/a 08:50 0.5 °C 1.8, 2012 0.3, 2015
Max 1hr Temp Fall n/a 02:39 1.4 °C 4.2, 2012 0.8, 2014
Max 1hr Hum Fall n/a 11:25 7% 37, 2010 5, 2020
Max 10m Wind Speed 10.9 mph 17:35 7.7 mph 14.2 mph, 2012 5.2 mph, 2018
Minimum Feels-like 7.6 °C 07:38 15.5 °C 19.1 °C, 2017 7.6 °C, 2009
Maximum Feels-like 19.3 °C 16:49 24.9 °C 28.9 °C, 2017 16.1 °C, 2020
Mean Feels-like 14.3 °C 20.0 °C 23.7 °C, 2017 13.8 °C, 2020
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 10.2 °C (+1.3) 8.4 °C (-0.5) 10.2 °C (+1.3), 2009 3.6 °C (-5.3), 2020
Humidity Range 52% 38% 52%, 2009 19%, 2020
Pressure Range 5 hPa 4 hPa 12 hPa, 2020 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8 [64%]149 hrs (87%) [39%] 10 [80%], 2013 0.3 [2%], 2018
Wet Hours 022 hrs (61%) [3.1%] 5, 2018 0, 2009
Cloud Cover not available
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
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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