Daily Report for 13th July 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.0 °C (+0.7) 06:20 14.1 °C (+1.3) 16.4 °C (+3.1), 2015 11.8 °C (-1.5), 2016
Maximum Temperature 21.5 °C (-1.0) 17:42 22.6 °C (+0.5) 30.3 °C (+7.8), 2013 17.2 °C (-5.3), 2011
Mean Temperature 17.3 °C (-0.1) 17.7 °C (+0.9) 23.0 °C, 2013 14.6 °C, 2011
Minimum Humidity 51% 17:51 51% 78%, 2015 32%, 2020
Maximum Humidity 87% 05:54 88% 96%, 2012 77%, 2017
Mean Humidity 70% 72% 87%, 2015 54%, 2017
Minimum Pressure 1007 hPa 18:38 1010 hPa 1023 hPa, 2013 1000 hPa, 2012
Maximum Pressure 1010 hPa 09:08 1014 hPa 1028 hPa, 2020 1006 hPa, 2012
Mean Pressure 1008 hPa 1012 hPa 1024 hPa, 2013 1002 hPa, 2012
Mean Wind Speed n/a (-4.3) 0.0 mph (-4.3) 6.1, 2012 2, 2013
Maximum Wind Speed n/a 0.0 mph 16.9, 2016 7.7, 2019
Maximum Gust n/a 0.0 mph 25.8, 2016 12.6, 2017
Mean Wind Direction n/a
Rainfall trace 21.0 mm (119%) 16.9, 2018
Maximum Hourly Rain n/a 13.4, 2018
Maximum 10-min Rain n/a 4.8, 2018
Maximum Rain Rate n/a 40, 2018
Minimum Dew Point 9.2 °C 20:02 9.5 °C 14.6 °C, 2015 5.1 °C, 2011
Maximum Dew Point 14.1 °C 14:15 15.1 °C 17.9 °C, 2013 10.1 °C, 2011
Mean Dew Point 11.5 °C 12.2 °C 15.6 °C, 2015 7.8 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.0 °C 14.1 °C 17.3 °C, 2014 11.8 °C, 2016
Day Maximum (09-21) 21.5 °C 22.6 °C 30.3 °C, 2013 17.2 °C, 2011
Max 10m Temp Rise n/a 01:18 0.5 °C 0.7, 2013 0.3, 2015
Max 1hr Temp Rise n/a 14:15 1.5 °C 3.5, 2013 1, 2015
Max 1hr Hum Rise n/a 02:18 6% 28, 2018 4, 2015
Max 10m Temp Fall n/a 01:28 0.5 °C 1.3, 2016 0.1, 2015
Max 1hr Temp Fall n/a 02:18 1.1 °C 3.9, 2018 0.5, 2015
Max 1hr Hum Fall n/a 10:47 7% 18, 2012 7, 2015
Max 10m Wind Speed n/a 0.0 mph 13.6, 2016 5.7, 2013
Minimum Feels-like n/a 0.0 °C 20.1, 2015 12.6, 2017
Maximum Feels-like n/a 0.0 °C 34.4, 2013 17.3, 2011
Mean Feels-like n/a 0.0 °C 26.6, 2013 15.1, 2011
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.5 °C (-1.7) 8.5 °C (-0.8) 15.6 °C (+6.4), 2013 3.6 °C (-5.6), 2015
Humidity Range 36% 37% 53%, 2020 13%, 2015
Pressure Range 3 hPa 4 hPa 8 hPa, 2020 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4.4 [30%]76 hrs (96%) [39%] 12 [81%], 2013 0 [0%], 2015
Wet Hours 0.216 hrs (114%) [5.2%] 5, 2015 0, 2011
Cloud Cover not available
Events None
Comments Light ~12 Shower
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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