Daily Report for 22nd July 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.4 °C (+0.6) 06:11 13.8 °C (+0.7) 17.5 °C (+3.7), 2016 10.5 °C (-3.3), 2011
Maximum Temperature 20.8 °C (-1.9) 16:39 22.0 °C (-0.4) 32.7 °C (+10.0), 2013 20.2 °C (-2.5), 2011
Mean Temperature 17.5 °C (-0.7) 17.3 °C (+0.2) 24.5 °C, 2013 15.4 °C, 2017
Minimum Humidity 53% 16:06 53% 63%, 2019 31%, 2013
Maximum Humidity 92% 05:38 90% 92%, 2009 71%, 2020
Mean Humidity 74% 74% 77%, 2017 55%, 2020
Minimum Pressure 1001 hPa 20:16 1009 hPa 1024 hPa, 2012 1001 hPa, 2009
Maximum Pressure 1004 hPa 00:16 1014 hPa 1029 hPa, 2012 1004 hPa, 2009
Mean Pressure 1002 hPa 1011 hPa 1026 hPa, 2012 1002 hPa, 2009
Mean Wind Speed n/a (-4.3) 0.0 mph (-4.3) 6.7, 2019 0.9, 2016
Maximum Wind Speed n/a 0.0 mph 13.9, 2019 6.8, 2016
Maximum Gust n/a 0.0 mph 23.2, 2015 11.3, 2016
Mean Wind Direction n/a
Rainfall 0.0 mm 39.9 mm (134%) 9.2 mm, 2017
Maximum Hourly Rain n/a 01:01 3.4, 2017
Maximum 10-min Rain n/a 00:58 1.6, 2010
Maximum Rain Rate n/a 30, 2010
Minimum Dew Point 10.4 °C 16:14 9.5 °C 13.8 °C, 2019 6.3 °C, 2011
Maximum Dew Point 14.1 °C 00:23 14.8 °C 19.7 °C, 2019 11.4 °C, 2012
Mean Dew Point 12.7 °C 12.2 °C 17.0 °C, 2019 9.4 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.4 °C 13.9 °C 17.5 °C, 2016 10.5 °C, 2011
Day Maximum (09-21) 20.8 °C 22.0 °C 32.7 °C, 2013 20.2 °C, 2011
Max 10m Temp Rise 0.5 °C 13:03 0.7 °C 1.0 °C, 2012 0.5 °C, 2009
Max 1hr Temp Rise 1.5 °C 09:31 1.7 °C 3.5 °C, 2012 1.5 °C, 2009
Max 1hr Hum Rise 5% 17:52 8% 18%, 2015 5%, 2009
Max 10m Temp Fall 0.5 °C 14:27 0.6 °C 1.0 °C, 2015 0.3 °C, 2012
Max 1hr Temp Fall 1.2 °C 23:04 1.4 °C 3.4 °C, 2015 1.2 °C, 2009
Max 1hr Hum Fall 8% 09:12 8% 13%, 2012 6%, 2019
Max 10m Wind Speed 5.2 mph 1.6 mph 11.3 mph, 2015 4.1 mph, 2016
Minimum Feels-like n/a 0.0 °C 20.4, 2013 11.4, 2011
Maximum Feels-like n/a 0.0 °C 36.9, 2013 21.2, 2011
Mean Feels-like n/a 0.0 °C 28.4, 2013 16.7, 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 6.4 °C (-2.4) 8.1 °C (-1.1) 16.0 °C (+7.2), 2013 5.3 °C (-3.5), 2016
Humidity Range 39% 37% 56%, 2013 22%, 2019
Pressure Range 3 hPa 5 hPa 8 hPa, 2010 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4.4 [30%]114 hrs (86%) [35%] 11 [76%], 2012 0.5 [3%], 2016
Wet Hours 032 hrs (132%) [6%] 8, 2017 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