Daily Report for 29th May 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.1 °C (+2.2) 05:35 8.9 °C (+0.7) 14.0 °C (+4.1), 2012 8.8 °C (-1.1), 2013
Maximum Temperature 24.0 °C (+5.9) 14:51 18.3 °C (+1.7) 24.0 °C (+5.9), 2009 12.5 °C (-5.6), 2013
Mean Temperature 17.5 °C (+4.0) 13.3 °C (+1.2) 18.4 °C, 2012 10.8 °C, 2013
Minimum Humidity 39% 20:07 47% 85%, 2018 28%, 2020
Maximum Humidity 95% 07:35 87% 97%, 2014 80%, 2011
Mean Humidity 68% 69% 92%, 2018 55%, 2020
Minimum Pressure 1029 hPa 20:59 1015 hPa 1029 hPa, 2009 1001 hPa, 2013
Maximum Pressure 1033 hPa 06:10 1020 hPa 1033 hPa, 2009 1008 hPa, 2013
Mean Pressure 1031 hPa 1018 hPa 1031 hPa, 2009 1004 hPa, 2013
Mean Wind Speed n/a (-4.7) 0.0 mph (-4.7) 8.6, 2011 2, 2017
Maximum Wind Speed n/a 0.0 mph 17.8, 2011 8.5, 2017
Maximum Gust n/a 0.0 mph 27.7, 2011 10.9, 2013
Mean Wind Direction n/a
Rainfall 0.0 mm 26.3 mm (55%) 16.3 mm, 2018
Maximum Hourly Rain n/a 8.1, 2018
Maximum 10-min Rain n/a 4, 2017
Maximum Rain Rate n/a 100, 2017
Minimum Dew Point 2.9 °C 20:16 4.0 °C 12.0 °C, 2018 -0.8 °C, 2020
Maximum Dew Point 16.2 °C 10:23 10.2 °C 16.9 °C, 2017 9.8 °C, 2015
Mean Dew Point 10.2 °C 7.1 °C 14.6 °C, 2017 4.6 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.1 °C 9.0 °C 14.0 °C, 2012 8.8 °C, 2013
Day Maximum (09-21) 24.0 °C 18.3 °C 24.0 °C, 2009 12.5 °C, 2013
Max 10m Temp Rise 0.7 °C 10:05 0.7 °C 0.7 °C, 2009 0.3 °C, 2018
Max 1hr Temp Rise 2.8 °C 10:17 2.3 °C 2.8 °C, 2009 1.4 °C, 2018
Max 1hr Hum Rise 12% 21:37 8% 22%, 2019 5%, 2011
Max 10m Temp Fall 0.5 °C 18:54 0.5 °C 0.7 °C, 2017 0.4 °C, 2013
Max 1hr Temp Fall 2.5 °C 19:44 1.6 °C 2.6 °C, 2019 0.8 °C, 2014
Max 1hr Hum Fall 14% 10:05 13% 18%, 2015 4%, 2018
Max 10m Wind Speed n/a 0.0 mph 13.9, 2011 5.8, 2012
Minimum Feels-like n/a 0.0 °C 16.1, 2017 5.8, 2016
Maximum Feels-like n/a 0.0 °C 27.1, 2017 14.5, 2013
Mean Feels-like n/a 0.0 °C 21.6, 2017 11.4, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 11.9 °C (+3.6) 9.4 °C (+1.0) 12.5 °C (+4.2), 2020 3.7 °C (-4.6), 2010
Humidity Range 56% 40% 56%, 2009 11%, 2018
Pressure Range 4 hPa 5 hPa 10 hPa, 2010 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 11.6 [79%]168 hrs (95%) [41%] 14.8 [101%], 2020 0 [0%], 2013
Wet Hours 028 hrs (74%) [4%] 4, 2010 0, 2009
Cloud Cover not available
Events None
Comments -
Extra Comments
Issues Tmax corrected as unreliable
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