Daily Report for 4th December 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.6 °C (+0.0) 07:48 3.6 °C (+0.0) 6.1 °C (+2.5), 2015 0.5 °C (-3.1), 2012
Maximum Temperature 9.4 °C (+0.6) 15:13 7.8 °C (-1.1) 12.8 °C (+4.0), 2015 5.9 °C (-2.9), 2010
Mean Temperature 7.2 °C (+0.3) 5.8 °C (-0.5) 10.0 °C, 2015 3.9 °C, 2012
Minimum Humidity 81% 23:04 78% 85%, 2010 51%, 2016
Maximum Humidity 96% 08:40 94% 97%, 2009 78%, 2016
Mean Humidity 87% 87% 93%, 2010 69%, 2016
Minimum Pressure 1030 hPa 00:45 1024 hPa 1030 hPa, 2017 996 hPa, 2011
Maximum Pressure 1036 hPa 22:30 1030 hPa 1036 hPa, 2017 1004 hPa, 2011
Mean Pressure 1033 hPa 1027 hPa 1033 hPa, 2017 1000 hPa, 2011
Mean Wind Speed 2.7 mph (-2.4) 3.9 mph (-1.2) 8.3 mph, 2015 1.5 mph, 2018
Maximum Wind Speed 7.9 mph 08:43 9.7 mph 23.7 mph, 2015 7.8 mph, 2018
Maximum Gust 11.5 mph 08:44 15.6 mph 36.7 mph, 2015 11.3 mph, 2009
Mean Wind Direction WNW
Rainfall 0.0 mm 0.9 mm (12%) 1.6 mm, 2009
Maximum Hourly Rain n/a 0.8, 2018
Maximum 10-min Rain n/a 0.3, 2010
Maximum Rain Rate n/a 0.8, 2018
Minimum Dew Point 2.5 °C 07:37 1.9 °C 2.8 °C, 2015 -3.1 °C, 2016
Maximum Dew Point 7.2 °C 14:11 5.8 °C 10.9 °C, 2015 0.6 °C, 2016
Mean Dew Point 5.2 °C 3.8 °C 6.0 °C, 2015 -1.4 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 3.6 °C 07:48 3.4 °C 7.3 °C, 2011 -1.4 °C, 2010
Day Maximum (09-21) 9.4 °C 15:13 7.8 °C 12.3 °C, 2015 3.7 °C, 2014
Max 10m Temp Rise 0.5 °C 08:32 0.4 °C 1.1 °C, 2009 0.1 °C, 2011
Max 1hr Temp Rise 2.0 °C 09:22 1.2 °C 2.2 °C, 2009 0.2 °C, 2014
Max 1hr Hum Rise 4% 08:36 5% 11%, 2009 4%, 2010
Max 10m Temp Fall 0.3 °C 02:12 0.3 °C 0.6 °C, 2013 0.2 °C, 2010
Max 1hr Temp Fall 1.2 °C 02:37 0.8 °C 2.5 °C, 2015 0.5 °C, 2010
Max 1hr Hum Fall 5% 11:06 6% 14%, 2012 3%, 2010
Max 10m Wind Speed 5.9 mph 12:21 7.3 mph 15.1 mph, 2015 5.9 mph, 2017
Minimum Feels-like 0.9 °C 08:24 -0.5 °C 2.1 °C, 2015 -3.8 °C, 2010
Maximum Feels-like 9.4 °C 14:30 7.4 °C 14.5 °C, 2015 4.7 °C, 2014
Mean Feels-like 6.0 °C 3.8 °C 9.1 °C, 2015 1.2 °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 5.8 °C (+0.6) 4.1 °C (-1.1) 6.8 °C (+1.6), 2012 2.6 °C (-2.6), 2014
Humidity Range 15% 16% 28%, 2012 12%, 2010
Pressure Range 6 hPa 6 hPa 17 hPa, 2015 1 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.2 [3%]5.5 hrs (87%) [19%] 7 [97%], 2016 0 [0%], 2010
Wet Hours 02.3 hrs (29%) [2.4%] 5, 2014 0, 2012
Cloud Cover Mostly 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 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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