Daily Report for 21st May 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.0 °C (-0.8) 05:18 7.5 °C (-0.0) 13.5 °C (+4.7), 2016 5.5 °C (-3.3), 2015
Maximum Temperature 22.4 °C (+5.2) 18:26 19.7 °C (+3.6) 24.3 °C (+7.1), 2010 15.9 °C (-1.3), 2013
Mean Temperature 16.0 °C (+2.2) 14.0 °C (+1.8) 18.2 °C, 2010 12.1 °C, 2012
Minimum Humidity 40% 18:44 42% 71%, 2012 30%, 2015
Maximum Humidity 93% 05:52 89% 93%, 2012 81%, 2015
Mean Humidity 70% 65% 83%, 2012 55%, 2011
Minimum Pressure 1015 hPa 17:30 1016 hPa 1029 hPa, 2010 1001 hPa, 2014
Maximum Pressure 1021 hPa 00:10 1022 hPa 1032 hPa, 2010 1010 hPa, 2012
Mean Pressure 1017 hPa 1019 hPa 1030 hPa, 2010 1008 hPa, 2014
Mean Wind Speed 2.2 mph (-2.5) 3.8 mph (-0.9) 5.4 mph, 2011 2.2 mph, 2018
Maximum Wind Speed 10.6 mph 18:44 11.5 mph 14.5 mph, 2011 8.4 mph, 2010
Maximum Gust 15.0 mph 18:32 18.0 mph 25.8 mph, 2016 12.0 mph, 2010
Mean Wind Direction ENE
Rainfall 0.0 mm 12.8 mm (37%) 0.4 mm, 2014
Maximum Hourly Rain n/a 0.4, 2014
Maximum 10-min Rain n/a 0.4, 2014
Maximum Rain Rate n/a 1.5, 2014
Minimum Dew Point 6.6 °C 05:13 4.4 °C 9.5 °C, 2010 1.2 °C, 2015
Maximum Dew Point 13.8 °C 15:45 9.9 °C 15.1 °C, 2010 7.6 °C, 2015
Mean Dew Point 10.1 °C 7.0 °C 12.2 °C, 2010 3.8 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 8.0 °C 05:18 7.9 °C 13.5 °C, 2016 5.5 °C, 2015
Day Maximum (09-21) 22.4 °C 18:26 19.7 °C 24.3 °C, 2010 14.1 °C, 2013
Max 10m Temp Rise 0.7 °C 09:37 0.8 °C 1.7 °C, 2010 0.4 °C, 2012
Max 1hr Temp Rise 3.1 °C 08:46 2.9 °C 5.7 °C, 2011 1.0 °C, 2016
Max 1hr Hum Rise 14% 19:44 11% 14%, 2018 4%, 2012
Max 10m Temp Fall 0.5 °C 21:05 0.6 °C 1.0 °C, 2010 0.2 °C, 2012
Max 1hr Temp Fall 2.0 °C 21:47 2.1 °C 2.0 °C, 2018 0.7 °C, 2012
Max 1hr Hum Fall 19% 17:27 16% 25%, 2010 5%, 2012
Max 10m Wind Speed 6.6 mph 18:35 8.5 mph 9.4 mph, 2011 6.6 mph, 2018
Minimum Feels-like 6.9 °C 04:26 6.1 °C 14.8 °C, 2010 3.0 °C, 2015
Maximum Feels-like 23.9 °C 13:23 20.6 °C 26.9 °C, 2010 17.9 °C, 2012
Mean Feels-like 17.3 °C 14.1 °C 20.5 °C, 2010 12.5 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 14.4 °C (+6.0) 12.2 °C (+3.7) 14.6 °C (+6.2), 2015 4.2 °C (-4.2), 2016
Humidity Range 53% 46% 53%, 2009 17%, 2013
Pressure Range 6 hPa 5 hPa 10 hPa, 2014 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7 [49%]195 hrs (154%) [67%] 13.5 [94%], 2011 0.4 [3%], 2016
Wet Hours 017 hrs (61%) [3.3%] 0.5, 2014 0, 2009
Cloud Cover Partly Cloudy
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
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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Webcam Summary of Cloud Conditions

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