Daily Report for 20th February 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.6 °C (+2.5) 23:54 1.2 °C (-0.9) 10.1 °C (+8.0), 2017 -2.0 °C (-4.1), 2012
Maximum Temperature 8.9 °C (+1.3) 00:00 7.1 °C (-0.2) 17.1 °C (+9.5), 2017 4.2 °C (-3.4), 2013
Mean Temperature 7.6 °C (+1.9) 4.4 °C (-0.5) 12.6 °C, 2017 1.0 °C, 2010
Minimum Humidity 69% 14:42 68% 93%, 2011 44%, 2012
Maximum Humidity 96% 03:58 92% 98%, 2011 78%, 2012
Mean Humidity 86% 82% 95%, 2011 63%, 2012
Minimum Pressure 1017 hPa 01:45 1010 hPa 1030 hPa, 2012 995 hPa, 2010
Maximum Pressure 1025 hPa 23:15 1019 hPa 1033 hPa, 2012 998 hPa, 2010
Mean Pressure 1020 hPa 1014 hPa 1032 hPa, 2012 996 hPa, 2010
Mean Wind Speed 6.8 mph (+1.7) 5.5 mph (+0.4) 9.4 mph, 2016 2.6 mph, 2010
Maximum Wind Speed 17.6 mph 18:12 14.2 mph 18.7 mph, 2016 9.2 mph, 2010
Maximum Gust 27.6 mph 18:13 22.2 mph 31.4 mph, 2016 12.1 mph, 2010
Mean Wind Direction N
Rainfall 0.4 mm 29.4 mm (103%) 3.1 mm, 2016
Maximum Hourly Rain 0.2 mm 1.1 mm, 2016
Maximum 10-min Rain 0.2 mm 0.4 mm, 2015
Maximum Rain Rate n/a 1.4, 2015
Minimum Dew Point 2.0 °C 23:53 -1.1 °C 7.5 °C, 2017 -6.8 °C, 2012
Maximum Dew Point 8.0 °C 00:00 4.2 °C 12.2 °C, 2017 1.1 °C, 2012
Mean Dew Point 5.3 °C 1.5 °C 9.4 °C, 2017 -2.9 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 7.9 °C * 05:29 2.1 °C 10.1 °C, 2017 -2.0 °C, 2012
Day Maximum (09-21) * 8.8 °C * 15:07 6.8 °C 17.1 °C, 2017 4.2 °C, 2013
Max 10m Temp Rise 0.5 °C 13:57 0.5 °C 0.8 °C, 2009 0.1 °C, 2011
Max 1hr Temp Rise 0.7 °C 12:11 1.6 °C 2.8 °C, 2012 0.3 °C, 2011
Max 1hr Hum Rise 13% 15:46 8% 13%, 2014 1%, 2011
Max 10m Temp Fall 0.6 °C 15:40 0.5 °C 0.9 °C, 2014 0.1 °C, 2011
Max 1hr Temp Fall 1.5 °C 16:06 1.2 °C 2.5 °C, 2014 0.3 °C, 2011
Max 1hr Hum Fall 10% 10:42 8% 21%, 2009 1%, 2011
Max 10m Wind Speed 15.3 mph 18:13 11.0 mph 15.3 mph, 2018 5.7 mph, 2010
Minimum Feels-like 0.2 °C 23:41 -2.8 °C 10.3 °C, 2017 -5.7 °C, 2012
Maximum Feels-like 9.1 °C 00:21 6.1 °C 19.4 °C, 2017 3.3 °C, 2013
Mean Feels-like 4.9 °C 1.5 °C 13.6 °C, 2017 -0.6 °C, 2013
Air-frost Hrs 0 hrs 1 hrs 10 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.3 °C (-1.2) 5.9 °C (+0.7) 10.3 °C (+4.8), 2012 1.5 °C (-4.0), 2011
Humidity Range 27% 25% 44%, 2009 5%, 2011
Pressure Range 8 hPa 9 hPa 14 hPa, 2014 3 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [11%]58 hrs (111%) [33%] 6 [65%], 2010 0 [0%], 2011
Wet Hours 1
[Mean rain rate: 0.4 mm/h]
50 hrs (133%) [10%] 6, 2016 , 2009
Cloud Cover Overcast with periods of Partly Cloudy
Events None
Comments 09, 1530 Showers
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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