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 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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