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 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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