Daily Report for 20th June 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.2 °C (-0.2) 06:19 10.4 °C (-0.4) 17.6 °C (+6.3), 2017 7.3 °C (-4.0), 2010
Maximum Temperature 18.3 °C (-2.4) 13:16 19.6 °C (-0.1) 30.3 °C (+9.6), 2017 18.3 °C (-2.4), 2009
Mean Temperature 14.6 °C (-1.3) 14.8 °C (-0.2) 23.6 °C, 2017 12.4 °C, 2010
Minimum Humidity 53% 15:12 49% 68%, 2013 36%, 2012
Maximum Humidity 81% 08:28 86% 93%, 2016 75%, 2010
Mean Humidity 66% 69% 82%, 2016 58%, 2012
Minimum Pressure 1022 hPa 10:35 1013 hPa 1022 hPa, 2009 1009 hPa, 2011
Maximum Pressure 1024 hPa 23:54 1018 hPa 1024 hPa, 2009 1014 hPa, 2011
Mean Pressure 1023 hPa 1016 hPa 1023 hPa, 2009 1012 hPa, 2011
Mean Wind Speed n/a (-4.4) 0.0 mph (-4.4) 6.7, 2018 1.8, 2014
Maximum Wind Speed n/a 0.0 mph 13.6, 2018 7.3, 2010
Maximum Gust n/a 0.0 mph 21, 2016 10.3, 2010
Mean Wind Direction n/a
Rainfall trace 34.7 mm (95%) 15.2, 2016
Maximum Hourly Rain n/a 5.5, 2016
Maximum 10-min Rain n/a 1.5, 2015
Maximum Rain Rate n/a 42, 2015
Minimum Dew Point 6.0 °C 00:09 5.9 °C 13.3 °C, 2017 2.3 °C, 2010
Maximum Dew Point 10.5 °C 15:23 11.4 °C 18.1 °C, 2016 7.0 °C, 2010
Mean Dew Point 8.3 °C 8.6 °C 14.9 °C, 2018 5.0 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 11.2 °C 10.6 °C 17.6 °C, 2017 7.3 °C, 2010
Day Maximum (09-21) 18.3 °C 19.6 °C 30.3 °C, 2017 18.3 °C, 2009
Max 10m Temp Rise 0.8 °C 13:09 0.8 °C 1.5 °C, 2012 0.4 °C, 2015
Max 1hr Temp Rise 2.4 °C 13:10 2.4 °C 4.2 °C, 2012 1.6 °C, 2015
Max 1hr Hum Rise 13% 17:35 9% 14%, 2011 5%, 2010
Max 10m Temp Fall 0.5 °C 17:16 0.6 °C 0.7 °C, 2012 0.4 °C, 2010
Max 1hr Temp Fall 1.4 °C 22:08 1.7 °C 2.4 °C, 2017 1.4 °C, 2009
Max 1hr Hum Fall 11% 13:37 12% 17%, 2012 4%, 2015
Max 10m Wind Speed n/a 0.0 mph 10.6, 2016 5.9, 2017
Minimum Feels-like n/a 0.0 °C 20.6, 2017 6.2, 2010
Maximum Feels-like n/a 0.0 °C 34.6, 2017 18.9, 2010
Mean Feels-like n/a 0.0 °C 27.4, 2017 12.0, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.1 °C (-2.2) 9.2 °C (+0.3) 12.8 °C (+3.5), 2014 6.3 °C (-3.0), 2013
Humidity Range 28% 38% 52%, 2012 21%, 2013
Pressure Range 2 hPa 5 hPa 8 hPa, 2016 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3 [20%]110 hrs (86%) [37%] 11.5 [76%], 2017 0.2 [1%], 2015
Wet Hours 133 hrs (135%) [6.9%] 8, 2016 0, 2010
Cloud Cover not available
Events None
Comments 04-06 SLight Rain//DrizzleShowers, 17-1730 SLight Rain
Extra Comments
Issues None known
Observer Absent? No
Notes
Times of extremes are computed using the midpoint time of the extremum (if the value persisted for >1 minute).
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; their reliablity is questionable and they are provided for interest only.
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Daily Graph of Conditions

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