Daily Report for 11th December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 1.1 °C (-2.2) 07:38 6.2 °C (+2.8) 6.0 °C (+2.6), 2015 -3.4 °C (-6.8), 2012
Maximum Temperature 8.3 °C (+0.1) 14:23 11.4 °C (+2.9) 10.4 °C (+2.2), 2015 1.7 °C (-6.5), 2012
Mean Temperature 4.6 °C (-1.1) 9.2 °C (+2.8) 9.1 °C, 2015 -0.6 °C, 2012
Minimum Humidity 79% 15:18 80% 96%, 2009 65%, 2014
Maximum Humidity 97% 10:23 93% 98%, 2009 79%, 2016
Mean Humidity 90% 87% 98%, 2009 77%, 2014
Minimum Pressure 1023 hPa 21:56 1006 hPa 1032 hPa, 2009 978 hPa, 2017
Maximum Pressure 1028 hPa 00:08 1017 hPa 1034 hPa, 2009 998 hPa, 2017
Mean Pressure 1025 hPa 1011 hPa 1033 hPa, 2009 985 hPa, 2017
Mean Wind Speed 0.9 mph (-4.2) 5.9 mph (+0.8) 8.7 mph, 2014 0.6 mph, 2013
Maximum Wind Speed 8.1 mph 23:45 14.8 mph 18.1 mph, 2014 4.0 mph, 2013
Maximum Gust 11.5 mph 23:46 24.6 mph 25.3 mph, 2014 5.9 mph, 2013
Mean Wind Direction ESE
Rainfall 0.0 mm 21.0 mm (106%) 14.6 mm, 2017
Maximum Hourly Rain n/a 5.3, 2011
Maximum 10-min Rain n/a 2, 2011
Maximum Rain Rate n/a 24, 2015
Minimum Dew Point 0.2 °C 07:38 4.4 °C 3.5 °C, 2015 -4.2 °C, 2012
Maximum Dew Point 5.4 °C 23:57 9.4 °C 8.5 °C, 2015 0.1 °C, 2012
Mean Dew Point 3.1 °C 7.2 °C 6.7 °C, 2015 -1.7 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 1.1 °C 07:38 7.5 °C 9.5 °C, 2015 -1.2 °C, 2012
Day Maximum (09-21) 8.3 °C 14:23 11.3 °C 10.4 °C, 2015 1.7 °C, 2012
Max 10m Temp Rise 0.5 °C 09:28 0.4 °C 0.6 °C, 2009 0.1 °C, 2015
Max 1hr Temp Rise 2.1 °C 10:02 1.1 °C 2.1 °C, 2018 0.4 °C, 2015
Max 1hr Hum Rise 6% 17:46 5% 9%, 2014 1%, 2009
Max 10m Temp Fall 0.4 °C 16:54 0.4 °C 0.6 °C, 2014 0.2 °C, 2016
Max 1hr Temp Fall 1.5 °C 01:22 1.1 °C 1.7 °C, 2012 0.7 °C, 2016
Max 1hr Hum Fall 9% 12:59 6% 12%, 2014 0%, 2013
Max 10m Wind Speed 5.8 mph 23:49 11.1 mph 13.0 mph, 2014 3.0 mph, 2013
Minimum Feels-like 0.3 °C 09:18 3.7 °C 3.1 °C, 2015 -6.8 °C, 2017
Maximum Feels-like 8.3 °C 14:16 12.6 °C 10.6 °C, 2015 -0.9 °C, 2017
Mean Feels-like 4.3 °C 8.8 °C 7.5 °C, 2015 -3.5 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 14 hrs, 2012 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.2 °C (+2.4) 5.2 °C (+0.2) 7.2 °C (+2.4), 2018 3.1 °C (-1.8), 2017
Humidity Range 18% 13% 21%, 2014 2%, 2009
Pressure Range 5 hPa 11 hPa 20 hPa, 2017 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6.5 [92%]19 hrs (112%) [24%] 7 [99%], 2012 0 [0%], 2011
Wet Hours 029 hrs (130%) [11%] 13, 2017 0, 2009
Cloud Cover Sunny
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 0.0 °C
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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