Daily Report for 20th April 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.9 °C (+8.9) 05:49 8.0 °C (+3.3) 13.9 °C (+8.9), 2018 1.4 °C (-3.6), 2013
Maximum Temperature 25.9 °C (+12.9) 16:34 15.2 °C (+2.9) 25.9 °C (+12.9), 2018 13.0 °C (-0.0), 2012
Mean Temperature 20.0 °C (+10.9) 11.5 °C (+3.1) 20.0 °C, 2018 7.8 °C, 2013
Minimum Humidity 40% 15:40 63% 75%, 2014 33%, 2011
Maximum Humidity 78% 06:20 89% 95%, 2014 72%, 2017
Mean Humidity 60% 78% 90%, 2014 54%, 2011
Minimum Pressure 1023 hPa 05:22 1007 hPa 1032 hPa, 2017 990 hPa, 2012
Maximum Pressure 1025 hPa 11:28 1015 hPa 1037 hPa, 2017 995 hPa, 2012
Mean Pressure 1024 hPa 1011 hPa 1035 hPa, 2017 992 hPa, 2012
Mean Wind Speed 2.9 mph (-2.0) 4.9 mph (+0.0) 4.6 mph, 2012 2.3 mph, 2011
Maximum Wind Speed 9.1 mph 16:09 13.4 mph 15.6 mph, 2012 9.1 mph, 2018
Maximum Gust 12.7 mph 23:14 20.9 mph 25.6 mph, 2012 12.7 mph, 2018
Mean Wind Direction NW
Rainfall 0.0 mm 34.9 mm (107%) 8.0 mm, 2012
Maximum Hourly Rain n/a 4.9, 2012
Maximum 10-min Rain n/a 2.6, 2012
Maximum Rain Rate n/a 30, 2012
Minimum Dew Point 9.6 °C 23:56 5.0 °C 9.6 °C, 2018 -3.0 °C, 2010
Maximum Dew Point 14.1 °C 10:39 9.4 °C 14.1 °C, 2018 4.2 °C, 2013
Mean Dew Point 11.5 °C 7.4 °C 11.5 °C, 2018 -0.1 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.9 °C 05:49 8.2 °C 13.9 °C, 2018 1.4 °C, 2013
Day Maximum (09-21) 25.9 °C 16:34 15.1 °C 25.9 °C, 2018 13.0 °C, 2012
Max 10m Temp Rise 0.6 °C 10:19 0.5 °C 1.0 °C, 2013 0.4 °C, 2014
Max 1hr Temp Rise 2.5 °C 08:02 1.7 °C 4.2 °C, 2013 1.6 °C, 2014
Max 1hr Hum Rise 9% 21:48 7% 19%, 2012 4%, 2010
Max 10m Temp Fall 0.7 °C 22:03 0.5 °C 1.7 °C, 2012 0.4 °C, 2014
Max 1hr Temp Fall 3.1 °C 22:41 1.5 °C 3.6 °C, 2012 1.3 °C, 2017
Max 1hr Hum Fall 9% 10:33 8% 19%, 2013 1%, 2017
Max 10m Wind Speed 6.8 mph 23:22 9.9 mph 11.2 mph, 2014 6.8 mph, 2018
Minimum Feels-like 15.1 °C 05:36 5.7 °C 15.1 °C, 2018 0.1 °C, 2013
Maximum Feels-like 28.6 °C 13:46 15.9 °C 28.6 °C, 2018 13.0 °C, 2012
Mean Feels-like 22.0 °C 11.2 °C 22.0 °C, 2018 7.2 °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 12.0 °C (+4.0) 7.1 °C (-0.4) 15.3 °C (+7.3), 2011 6.7 °C (-1.3), 2014
Humidity Range 38% 26% 56%, 2013 20%, 2014
Pressure Range 2 hPa 7 hPa 11 hPa, 2014 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 12.8 [100%]75 hrs (84%) [31%] 12.8 [100%], 2016 0 [0%], 2014
Wet Hours 055 hrs (178%) [11%] 5, 2014 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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Webcam Summary of Cloud Conditions

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