Daily Report for 9th December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.1 °C (+2.7) 23:58 6.9 °C (+3.3) 11.2 °C (+7.8), 2016 -2.1 °C (-5.5), 2010
Maximum Temperature 10.1 °C (+1.7) 13:48 12.1 °C (+3.5) 13.8 °C (+5.4), 2016 3.2 °C (-5.2), 2017
Mean Temperature 8.9 °C (+2.2) 10.0 °C (+3.4) 12.5 °C, 2016 1.1 °C, 2017
Minimum Humidity 73% 15:04 80% 95%, 2009 58%, 2011
Maximum Humidity 90% 09:48 93% 98%, 2009 77%, 2011
Mean Humidity 80% 87% 97%, 2009 68%, 2011
Minimum Pressure 999 hPa 00:26 1002 hPa 1029 hPa, 2015 999 hPa, 2018
Maximum Pressure 1023 hPa 23:45 1014 hPa 1034 hPa, 2015 1014 hPa, 2011
Mean Pressure 1010 hPa 1008 hPa 1032 hPa, 2015 1010 hPa, 2018
Mean Wind Speed 7.6 mph (+2.5) 6.7 mph (+1.6) 7.6 mph, 2018 3.5 mph, 2009
Maximum Wind Speed 19.9 mph 06:08 16.0 mph 19.9 mph, 2018 9.7 mph, 2009
Maximum Gust 34.6 mph 03:20 27.0 mph 34.6 mph, 2018 12.8 mph, 2009
Mean Wind Direction WNW
Rainfall 1.0 mm 21.0 mm (129%) 1.0 mm, 2018
Maximum Hourly Rain 1.0 mm 09:17 1.0 mm, 2018
Maximum 10-min Rain 0.8 mm 09:17 0.8 mm, 2018
Maximum Rain Rate 12 mm/h 09:15 12 mm/h, 2018
Minimum Dew Point 4.0 °C 23:39 4.9 °C 8.9 °C, 2009 -6.5 °C, 2010
Maximum Dew Point 7.3 °C 09:13 10.2 °C 10.9 °C, 2009 -0.4 °C, 2017
Mean Dew Point 5.7 °C 7.9 °C 10.2 °C, 2009 -2.7 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 8.9 °C * 02:19 8.4 °C 12.7 °C, 2016 -2.1 °C, 2010
Day Maximum (09-21) 10.1 °C 13:48 12.0 °C 13.5 °C, 2016 3.2 °C, 2017
Max 10m Temp Rise 0.2 °C 04:48 0.4 °C 0.4 °C, 2013 0.1 °C, 2016
Max 1hr Temp Rise 0.7 °C 05:25 1.1 °C 2.0 °C, 2015 0.3 °C, 2016
Max 1hr Hum Rise 8% 09:32 5% 8%, 2014 1%, 2009
Max 10m Temp Fall 0.4 °C 09:19 0.4 °C 0.4 °C, 2014 0.2 °C, 2010
Max 1hr Temp Fall 1.1 °C 09:27 1.1 °C 1.2 °C, 2014 0.4 °C, 2016
Max 1hr Hum Fall 9% 12:12 6% 9%, 2018 1%, 2016
Max 10m Wind Speed 15.2 mph 02:08 12.0 mph 15.2 mph, 2018 6.2 mph, 2009
Minimum Feels-like 2.8 °C 23:45 4.3 °C 11.5 °C, 2016 -7.4 °C, 2010
Maximum Feels-like 10.1 °C 13:48 13.5 °C 14.7 °C, 2016 3.1 °C, 2017
Mean Feels-like 6.3 °C 9.7 °C 13.8 °C, 2016 -2.6 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 9 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.0 °C (-0.9) 5.2 °C (+0.1) 11.2 °C (+6.3), 2014 2.3 °C (-2.6), 2009
Humidity Range 17% 13% 26%, 2012 3%, 2009
Pressure Range 24 hPa 12 hPa 24 hPa, 2018 3 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2.4 [34%]13 hrs (89%) [19%] 6 [84%], 2011 1 [14%], 2009
Wet Hours 0.5
[Mean rain rate: 2.0 mm/h]
29 hrs (158%) [13%] 2, 2014 0, 2010
Cloud Cover Partly Cloudy
Events None
Comments 0930 Shower
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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