Daily Report for 21st April 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.0 °C (+6.0) 06:03 8.2 °C (+3.4) 11.6 °C (+6.6), 2011 0.2 °C (-4.8), 2013
Maximum Temperature 22.9 °C (+9.8) 14:23 15.6 °C (+3.2) 24.4 °C (+11.3), 2011 13.8 °C (+0.7), 2010
Mean Temperature 16.9 °C (+7.9) 11.7 °C (+3.3) 17.5 °C, 2011 7.9 °C, 2010
Minimum Humidity 55% 13:43 62% 55%, 2018 31%, 2011
Maximum Humidity 86% 06:10 89% 98%, 2014 66%, 2011
Mean Humidity 70% 78% 74%, 2014 48%, 2011
Minimum Pressure 1015 hPa 23:37 1007 hPa 1032 hPa, 2015 994 hPa, 2012
Maximum Pressure 1024 hPa 00:10 1015 hPa 1034 hPa, 2015 1002 hPa, 2012
Mean Pressure 1021 hPa 1011 hPa 1033 hPa, 2015 998 hPa, 2012
Mean Wind Speed 3.6 mph (-1.3) 4.9 mph (-0.0) 5.2 mph, 2012 2.1 mph, 2014
Maximum Wind Speed 9.8 mph 20:38 13.2 mph 13.0 mph, 2012 9.4 mph, 2010
Maximum Gust 12.7 mph 17:40 20.5 mph 22.1 mph, 2012 12.7 mph, 2018
Mean Wind Direction E
Rainfall 0.0 mm 34.9 mm (102%) 4.4 mm, 2014
Maximum Hourly Rain n/a 2.2, 2014
Maximum 10-min Rain n/a 0.9, 2014
Maximum Rain Rate n/a 10.8, 2014
Minimum Dew Point 8.7 °C 05:38 5.2 °C 8.7 °C, 2018 -3.7 °C, 2010
Maximum Dew Point 14.1 °C 14:10 9.6 °C 14.1 °C, 2018 0.7 °C, 2010
Mean Dew Point 11.2 °C 7.5 °C 11.2 °C, 2018 -1.6 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 11.0 °C 06:03 8.3 °C 11.6 °C, 2011 0.2 °C, 2013
Day Maximum (09-21) 22.9 °C 14:23 15.5 °C 24.4 °C, 2011 13.8 °C, 2010
Max 10m Temp Rise 0.6 °C 08:19 0.5 °C 1.4 °C, 2013 0.4 °C, 2017
Max 1hr Temp Rise 2.3 °C 09:09 1.8 °C 5.7 °C, 2013 1.3 °C, 2017
Max 1hr Hum Rise 7% 20:13 7% 20%, 2014 4%, 2017
Max 10m Temp Fall 0.6 °C 19:38 0.5 °C 0.9 °C, 2012 0.4 °C, 2009
Max 1hr Temp Fall 2.1 °C 19:45 1.6 °C 2.9 °C, 2014 1.5 °C, 2017
Max 1hr Hum Fall 8% 09:09 8% 25%, 2014 8%, 2010
Max 10m Wind Speed 6.9 mph 17:46 9.8 mph 10.1 mph, 2012 6.9 mph, 2018
Minimum Feels-like 11.7 °C 05:54 6.0 °C 11.7 °C, 2018 -0.9 °C, 2013
Maximum Feels-like 26.2 °C 14:10 16.4 °C 26.2 °C, 2018 14.0 °C, 2010
Mean Feels-like 18.8 °C 11.5 °C 18.8 °C, 2018 6.4 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 11.9 °C (+3.8) 7.4 °C (-0.2) 15.6 °C (+7.5), 2009 6.0 °C (-2.1), 2017
Humidity Range 31% 26% 58%, 2014 26%, 2017
Pressure Range 9 hPa 8 hPa 12 hPa, 2013 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8.2 [64%]84 hrs (89%) [32%] 12.8 [100%], 2015 0 [0%], 2017
Wet Hours 055 hrs (169%) [11%] 4, 2014 0, 2009
Cloud Cover am: Sunny
pm: Mostly Cloudy or Partly Cloudy
Events None
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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