Daily Report for 15th May 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.0 °C (+2.0) 05:26 7.9 °C (+0.8) 10.0 °C (+2.0), 2018 4.8 °C (-3.2), 2012
Maximum Temperature 22.6 °C (+6.2) 15:20 20.0 °C (+4.3) 22.6 °C (+6.2), 2018 11.5 °C (-4.9), 2012
Mean Temperature 16.3 °C (+4.1) 14.3 °C (+2.5) 16.3 °C, 2018 7.5 °C, 2012
Minimum Humidity 48% 12:47 42% 65%, 2017 38%, 2014
Maximum Humidity 73% 06:41 88% 97%, 2015 73%, 2018
Mean Humidity 59% 64% 81%, 2009 58%, 2010
Minimum Pressure 1020 hPa 16:44 1014 hPa 1033 hPa, 2014 987 hPa, 2013
Maximum Pressure 1022 hPa 23:55 1020 hPa 1036 hPa, 2014 1001 hPa, 2013
Mean Pressure 1021 hPa 1017 hPa 1035 hPa, 2014 994 hPa, 2013
Mean Wind Speed 4.0 mph (-0.7) 4.0 mph (-0.7) 8.5 mph, 2013 1.4 mph, 2014
Maximum Wind Speed 9.9 mph 12:09 11.8 mph 21.5 mph, 2013 6.7 mph, 2014
Maximum Gust 17.3 mph 13:36 18.5 mph 30.8 mph, 2013 8.7 mph, 2014
Mean Wind Direction N
Rainfall 0.0 mm 12.8 mm (52%) 5.9 mm, 2012
Maximum Hourly Rain n/a 2.5, 2009
Maximum 10-min Rain n/a 1.2, 2009
Maximum Rain Rate n/a 16.4, 2009
Minimum Dew Point 3.8 °C 00:06 4.3 °C 6.0 °C, 2009 1.8 °C, 2013
Maximum Dew Point 13.2 °C 15:12 10.0 °C 13.2 °C, 2017 6.2 °C, 2012
Mean Dew Point 8.2 °C 6.9 °C 10.2 °C, 2017 3.3 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.0 °C 05:35 8.2 °C 11.7 °C, 2009 5.0 °C, 2012
Day Maximum (09-21) 22.6 °C 15:47 20.0 °C 22.6 °C, 2018 11.5 °C, 2012
Max 10m Temp Rise 0.6 °C 09:25 0.8 °C 0.8 °C, 2009 0.5 °C, 2011
Max 1hr Temp Rise 2.3 °C 07:39 3.0 °C 3.6 °C, 2014 1.2 °C, 2009
Max 1hr Hum Rise 10% 22:43 11% 15%, 2012 5%, 2011
Max 10m Temp Fall 0.7 °C 19:49 0.7 °C 1.6 °C, 2012 0.4 °C, 2010
Max 1hr Temp Fall 2.5 °C 20:22 2.2 °C 3.3 °C, 2012 1.0 °C, 2015
Max 1hr Hum Fall 11% 08:40 17% 17%, 2015 7%, 2010
Max 10m Wind Speed 6.9 mph 17:25 8.9 mph 16.4 mph, 2013 4.8 mph, 2014
Minimum Feels-like 10.0 °C 05:26 6.6 °C 10.0 °C, 2018 1.1 °C, 2012
Maximum Feels-like 25.5 °C 15:26 21.0 °C 25.5 °C, 2018 11.5 °C, 2012
Mean Feels-like 17.1 °C 14.4 °C 17.1 °C, 2018 6.2 °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 12.6 °C (+4.2) 12.1 °C (+3.6) 13.9 °C (+5.5), 2014 6.7 °C (-1.7), 2012
Humidity Range 25% 46% 49%, 2014 20%, 2017
Pressure Range 2 hPa 6 hPa 14 hPa, 2013 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 14 [99%]133 hrs (149%) [64%] 14 [99%], 2018 0 [0%], 2017
Wet Hours 017 hrs (85%) [4.6%] 4, 2009 0, 2010
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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