Daily Report for 29th July 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.9 °C (-0.0) 23:52 13.6 °C (+0.3) 16.6 °C (+2.7), 2016 10.5 °C (-3.4), 2015
Maximum Temperature 20.1 °C (-2.6) 14:49 21.7 °C (-0.7) 26.6 °C (+3.9), 2014 18.9 °C (-3.8), 2012
Mean Temperature 16.5 °C (-1.3) 17.1 °C (-0.2) 20.8 °C, 2014 14.8 °C, 2012
Minimum Humidity 60% 15:06 53% 69%, 2018 34%, 2014
Maximum Humidity 90% 16:14 90% 93%, 2018 79%, 2010
Mean Humidity 76% 74% 84%, 2018 59%, 2014
Minimum Pressure 1009 hPa 20:16 1009 hPa 1022 hPa, 2011 1004 hPa, 2018
Maximum Pressure 1016 hPa 01:52 1015 hPa 1025 hPa, 2011 1010 hPa, 2018
Mean Pressure 1012 hPa 1012 hPa 1024 hPa, 2011 1007 hPa, 2018
Mean Wind Speed n/a (-4.3) 0.0 mph (-4.3) 8.4, 2018 3.2, 2011
Maximum Wind Speed n/a 0.0 mph 18.9, 2018 8.7, 2014
Maximum Gust n/a 0.0 mph 30, 2018 12.1, 2011
Mean Wind Direction n/a
Rainfall 3.0 mm 54.3 mm (138%) 7.4 mm, 2017
Maximum Hourly Rain 1.9 mm 22:19 3.9 mm, 2017
Maximum 10-min Rain 1.1 mm 21:58 2.5 mm, 2012
Maximum Rain Rate 16 mm/h 21:54 80 mm/h, 2017
Minimum Dew Point 10.2 °C 01:56 9.6 °C 12.9 °C, 2016 4.2 °C, 2012
Maximum Dew Point 14.4 °C 10:13 14.7 °C 18.3 °C, 2018 9.9 °C, 2015
Mean Dew Point 12.2 °C 12.1 °C 15.1 °C, 2018 7.5 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 14.6 °C * 13.7 °C 16.6 °C, 2016 10.5 °C, 2015
Day Maximum (09-21) 20.1 °C 21.7 °C 26.6 °C, 2014 18.9 °C, 2012
Max 10m Temp Rise 0.7 °C 12:07 0.7 °C 0.8 °C, 2012 0.3 °C, 2018
Max 1hr Temp Rise 1.6 °C 14:45 1.8 °C 3.0 °C, 2012 1.1 °C, 2018
Max 1hr Hum Rise 15% 22:15 8% 20%, 2012 6%, 2016
Max 10m Temp Fall 0.6 °C 21:47 0.7 °C 1.6 °C, 2012 0.3 °C, 2010
Max 1hr Temp Fall 1.9 °C 19:19 1.5 °C 3.8 °C, 2012 1.2 °C, 2015
Max 1hr Hum Fall 11% 13:06 9% 17%, 2013 4%, 2018
Max 10m Wind Speed 5.0 mph 2.2 mph 13.6 mph, 2013 5.0 mph, 2009
Minimum Feels-like n/a 0.0 °C 20.2, 2016 10.7, 2015
Maximum Feels-like n/a 0.0 °C 28.6, 2014 19.2, 2015
Mean Feels-like n/a 0.0 °C 23.1, 2019 15.2, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.2 °C (-2.5) 8.1 °C (-0.9) 13.1 °C (+4.4), 2020 4.2 °C (-4.5), 2018
Humidity Range 30% 37% 50%, 2014 24%, 2018
Pressure Range 7 hPa 5 hPa 7 hPa, 2009 1 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.5 [11%]149 hrs (86%) [35%] 11 [77%], 2019 0 [0%], 2018
Wet Hours 3
[Mean rain rate: 1.0 mm/h]
47 hrs (149%) [6.8%] 6, 2017 0, 2010
Cloud Cover not available
Events None
Comments Light/Moderate 07-08, Moderate 16, Moderate/Heavy 21-2230 Rain
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