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 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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Webcam Summary of Cloud Conditions

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