Daily Report for 20th May 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.2 °C (-1.5) 05:25 7.5 °C (+0.0) 14.1 °C (+5.4), 2014 5.1 °C (-3.6), 2015
Maximum Temperature 20.7 °C (+3.7) 16:42 19.6 °C (+3.6) 22.4 °C (+5.4), 2010 11.7 °C (-5.3), 2012
Mean Temperature 14.4 °C (+1.1) 13.9 °C (+1.8) 17.4 °C, 2014 10.1 °C, 2012
Minimum Humidity 44% 16:40 43% 80%, 2012 41%, 2011
Maximum Humidity 93% 05:50 89% 93%, 2013 67%, 2011
Mean Humidity 71% 65% 85%, 2013 53%, 2011
Minimum Pressure 1020 hPa 19:25 1016 hPa 1030 hPa, 2010 1003 hPa, 2014
Maximum Pressure 1025 hPa 08:40 1022 hPa 1033 hPa, 2010 1010 hPa, 2014
Mean Pressure 1023 hPa 1019 hPa 1032 hPa, 2010 1006 hPa, 2014
Mean Wind Speed 3.1 mph (-1.6) 3.9 mph (-0.8) 5.8 mph, 2012 2.2 mph, 2010
Maximum Wind Speed 10.6 mph 16:23 11.5 mph 15.2 mph, 2017 7.1 mph, 2010
Maximum Gust 17.3 mph 16:24 18.2 mph 24.1 mph, 2017 10.0 mph, 2010
Mean Wind Direction ESE
Rainfall 0.0 mm 12.8 mm (39%) 1.5 mm, 2017
Maximum Hourly Rain n/a 1, 2017
Maximum 10-min Rain n/a 0.8, 2017
Maximum Rain Rate n/a 18, 2017
Minimum Dew Point 5.9 °C 04:55 4.3 °C 8.3 °C, 2010 1.1 °C, 2015
Maximum Dew Point 10.9 °C 11:55 9.7 °C 14.9 °C, 2010 5.7 °C, 2015
Mean Dew Point 8.7 °C 6.8 °C 11.6 °C, 2010 3.2 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 7.2 °C 05:26 7.9 °C 15.3 °C, 2014 5.1 °C, 2015
Day Maximum (09-21) 20.7 °C 16:42 19.6 °C 22.4 °C, 2010 11.7 °C, 2012
Max 10m Temp Rise 0.7 °C 10:28 0.8 °C 0.9 °C, 2009 0.4 °C, 2012
Max 1hr Temp Rise 3.0 °C 07:45 2.9 °C 3.0 °C, 2017 1.1 °C, 2012
Max 1hr Hum Rise 12% 20:53 11% 12%, 2018 2%, 2012
Max 10m Temp Fall 0.6 °C 20:10 0.7 °C 0.9 °C, 2017 0.2 °C, 2012
Max 1hr Temp Fall 2.4 °C 20:48 2.2 °C 2.5 °C, 2015 0.5 °C, 2012
Max 1hr Hum Fall 15% 10:55 16% 15%, 2018 5%, 2012
Max 10m Wind Speed 7.6 mph 19:12 8.6 mph 11.2 mph, 2017 5.1 mph, 2016
Minimum Feels-like 7.2 °C 05:12 6.1 °C 14.9 °C, 2016 2.0 °C, 2015
Maximum Feels-like 21.5 °C 14:20 20.4 °C 25.5 °C, 2010 12.4 °C, 2012
Mean Feels-like 15.2 °C 14.0 °C 18.8 °C, 2014 9.5 °C, 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 13.5 °C (+5.1) 12.1 °C (+3.6) 13.5 °C (+5.1), 2018 3.1 °C (-5.3), 2012
Humidity Range 49% 46% 49%, 2018 7%, 2012
Pressure Range 5 hPa 5 hPa 13 hPa, 2015 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 14.4 [100%]188 hrs (157%) [68%] 14.4 [100%], 2018 0 [0%], 2012
Wet Hours 017 hrs (64%) [3.4%] 1, 2013 0, 2009
Cloud Cover Sunny
Events Maximum possible sunshine
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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