Daily Report for 11th August 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.0 °C (-5.5) 05:51 14.5 °C (+0.9) 16.0 °C (+2.5), 2013 8.0 °C (-5.5), 2018
Maximum Temperature 21.8 °C (-0.7) 13:24 26.5 °C (+3.9) 24.4 °C (+1.9), 2009 20.7 °C (-1.8), 2014
Mean Temperature 15.8 °C (-3.1) 20.7 °C (+2.4) 19.5 °C, 2009 15.8 °C, 2018
Minimum Humidity 42% 12:38 43% 67%, 2011 36%, 2013
Maximum Humidity 95% 06:28 89% 97%, 2010 74%, 2013
Mean Humidity 74% 67% 78%, 2011 55%, 2013
Minimum Pressure 1018 hPa 23:59 1016 hPa 1020 hPa, 2016 1004 hPa, 2014
Maximum Pressure 1024 hPa 08:33 1021 hPa 1026 hPa, 2012 1009 hPa, 2014
Mean Pressure 1022 hPa 1019 hPa 1022 hPa, 2018 1007 hPa, 2014
Mean Wind Speed 3.8 mph (-0.2) 3.3 mph (-0.7) 7.9 mph, 2016 0.8 mph, 2015
Maximum Wind Speed 11.4 mph 18:45 11.3 mph 19.4 mph, 2016 5.9 mph, 2015
Maximum Gust 18.4 mph 18:46 17.9 mph 29.7 mph, 2014 7.8 mph, 2015
Mean Wind Direction SW
Rainfall 0.8 mm 21.4 mm (114%) 7.3 mm, 2014
Maximum Hourly Rain 0.8 mm 20:09 5.6 mm, 2014
Maximum 10-min Rain 0.4 mm 19:42 3.0 mm, 2014
Maximum Rain Rate 1.3 mm/h 19:42 90 mm/h, 2014
Minimum Dew Point 6.8 °C 05:22 10.9 °C 13.0 °C, 2009 5.7 °C, 2013
Maximum Dew Point 15.5 °C 20:03 16.4 °C 17.6 °C, 2011 13.0 °C, 2017
Mean Dew Point 10.7 °C 13.6 °C 14.3 °C, 2009 9.1 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 8.0 °C 05:52 14.8 °C 15.5 °C, 2009 8.0 °C, 2018
Day Maximum (09-21) 21.8 °C 13:25 26.2 °C 24.4 °C, 2009 20.7 °C, 2014
Max 10m Temp Rise 0.7 °C 07:18 1.1 °C 0.8 °C, 2014 0.4 °C, 2011
Max 1hr Temp Rise 3.7 °C 08:02 3.3 °C 3.7 °C, 2018 1.5 °C, 2011
Max 1hr Hum Rise 13% 19:43 14% 22%, 2014 6%, 2011
Max 10m Temp Fall 0.4 °C 19:32 0.9 °C 2.3 °C, 2014 0.3 °C, 2012
Max 1hr Temp Fall 1.5 °C 19:57 2.6 °C 4.9 °C, 2014 1.0 °C, 2016
Max 1hr Hum Fall 15% 08:02 16% 19%, 2012 7%, 2015
Max 10m Wind Speed 8.5 mph 15:18 8.3 mph 14.8 mph, 2016 3.7 mph, 2015
Minimum Feels-like 6.5 °C 05:57 16.9 °C 18.6 °C, 2009 6.5 °C, 2018
Maximum Feels-like 23.2 °C 16:52 29.7 °C 28.2 °C, 2009 21.6 °C, 2014
Mean Feels-like 17.5 °C 23.9 °C 23.0 °C, 2009 17.3 °C, 2014
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 13.8 °C (+4.8) 11.9 °C (+2.9) 13.8 °C (+4.8), 2018 6.6 °C (-2.4), 2011
Humidity Range 53% 46% 54%, 2010 22%, 2011
Pressure Range 7 hPa 6 hPa 11 hPa, 2012 3 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7 [52%]100 hrs (149%) [66%] 9 [66%], 2012 0.1 [1%], 2015
Wet Hours 2
[Mean rain rate: 0.4 mm/h]
17 hrs (126%) [6.4%] 3, 2014 0, 2009
Cloud Cover unknown
Events None
Comments blr
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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