Daily Report for 21st April 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.2 °C (+4.2) 01:25 6.6 °C (+1.8) 11.6 °C (+6.6), 2011 0.2 °C (-4.8), 2013
Maximum Temperature 15.2 °C (+2.1) 13:59 16.0 °C (+3.6) 24.4 °C (+11.3), 2011 13.8 °C (+0.7), 2010
Mean Temperature 12.4 °C (+3.1) 11.3 °C (+2.7) 17.5 °C, 2011 7.9 °C, 2010
Minimum Humidity 53% 16:03 47% 53%, 2017 31%, 2011
Maximum Humidity 79% 02:32 77% 98%, 2014 66%, 2011
Mean Humidity 64% 60% 74%, 2014 48%, 2011
Minimum Pressure 1028 hPa 21:06 1020 hPa 1032 hPa, 2015 994 hPa, 2012
Maximum Pressure 1032 hPa 06:45 1026 hPa 1034 hPa, 2015 1002 hPa, 2012
Mean Pressure 1030 hPa 1023 hPa 1033 hPa, 2015 998 hPa, 2012
Mean Wind Speed 3.7 mph (-1.2) 3.8 mph (-1.1) 5.2 mph, 2012 2.1 mph, 2014
Maximum Wind Speed 10.9 mph 15:14 11.3 mph 13.0 mph, 2012 9.4 mph, 2010
Maximum Gust 15.7 mph 15:35 16.1 mph 22.1 mph, 2012 13.6 mph, 2010
Mean Wind Direction NW
Rainfall 0.0 mm 0.4 mm (1%) 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 4.4 °C 19:52 0.6 °C 5.1 °C, 2014 -3.7 °C, 2010
Maximum Dew Point 7.2 °C 11:32 6.6 °C 11.6 °C, 2014 0.7 °C, 2010
Mean Dew Point 5.7 °C 3.6 °C 7.5 °C, 2014 -1.6 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 9.2 °C 01:25 6.7 °C 11.6 °C, 2011 0.2 °C, 2013
Day Maximum (09-21) 15.2 °C 13:59 16.0 °C 24.4 °C, 2011 13.8 °C, 2010
Max 10m Temp Rise 0.4 °C 02:47 0.6 °C 1.4 °C, 2013 0.4 °C, 2017
Max 1hr Temp Rise 1.3 °C 12:35 2.3 °C 5.7 °C, 2013 1.3 °C, 2017
Max 1hr Hum Rise 4% 02:22 6% 20%, 2014 4%, 2017
Max 10m Temp Fall 0.4 °C 01:15 0.5 °C 0.9 °C, 2012 0.4 °C, 2009
Max 1hr Temp Fall 1.5 °C 01:01 1.6 °C 2.9 °C, 2014 1.5 °C, 2017
Max 1hr Hum Fall 9% 13:20 8% 25%, 2014 8%, 2010
Max 10m Wind Speed 8.1 mph 15:42 8.4 mph 10.1 mph, 2012 7.4 mph, 2014
Minimum Feels-like 7.9 °C 05:54 4.7 °C 11.6 °C, 2011 -0.9 °C, 2013
Maximum Feels-like 15.2 °C 13:45 16.1 °C 24.6 °C, 2011 14.0 °C, 2010
Mean Feels-like 12.3 °C 11.0 °C 17.6 °C, 2011 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 6.0 °C (-2.1) 9.4 °C (+1.8) 15.6 °C (+7.5), 2009 6.0 °C (-2.1), 2017
Humidity Range 26% 30% 58%, 2014 26%, 2017
Pressure Range 4 hPa 6 hPa 12 hPa, 2013 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]139 hrs (148%) [54%] 12.8 [100%], 2015 0 [0%], 2017
Wet Hours 01 hrs (3%) [0.2%] 4, 2014 0, 2009
Cloud Cover Overcast
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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