Daily Report for 9th December 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 1.3 °C (-2.1) 22:23 3.0 °C (-0.5) 11.2 °C (+7.8), 2016 -2.1 °C (-5.5), 2010
Maximum Temperature 8.7 °C (+0.3) 13:56 9.1 °C (+0.5) 13.8 °C (+5.4), 2016 3.2 °C (-5.2), 2017
Mean Temperature 6.5 °C (-0.9) 6.2 °C (-0.0) 12.5 °C, 2016 1.1 °C, 2017
Minimum Humidity 63% 12:55 75% 95%, 2009 58%, 2011
Maximum Humidity 90% 22:44 93% 98%, 2009 77%, 2011
Mean Humidity 78% 86% 97%, 2009 68%, 2011
Minimum Pressure 991 hPa 00:30 1011 hPa 1029 hPa, 2015 991 hPa, 2019
Maximum Pressure 1026 hPa 23:21 1022 hPa 1034 hPa, 2015 1014 hPa, 2011
Mean Pressure 1011 hPa 1017 hPa 1032 hPa, 2015 1010 hPa, 2018
Mean Wind Speed 6.6 mph (+1.5) 5.9 mph (+0.8) 7.6 mph, 2018 3.5 mph, 2009
Maximum Wind Speed 18.9 mph 11:58 14.8 mph 19.9 mph, 2018 9.7 mph, 2009
Maximum Gust 33.0 mph 10:17 23.5 mph 34.6 mph, 2018 12.8 mph, 2009
Mean Wind Direction WNW
Rainfall 1.1 mm 10.5 mm (65%) 1.1 mm, 2018
Maximum Hourly Rain 0.7 mm 01:01 1.1 mm, 2018
Maximum 10-min Rain 0.4 mm 00:14 0.9 mm, 2018
Maximum Rain Rate 1.7 mm/h 00:14 13 mm/h, 2018
Minimum Dew Point -0.8 °C 22:07 1.1 °C 8.9 °C, 2009 -6.5 °C, 2010
Maximum Dew Point 5.5 °C 04:59 6.6 °C 10.9 °C, 2009 -0.4 °C, 2017
Mean Dew Point 2.8 °C 3.9 °C 10.2 °C, 2009 -2.7 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 6.5 °C * 22:21 4.2 °C 12.7 °C, 2016 -2.1 °C, 2010
Day Maximum (09-21) 8.7 °C 13:57 8.9 °C 13.5 °C, 2016 3.2 °C, 2017
Max 10m Temp Rise 0.4 °C 22:46 0.4 °C 0.4 °C, 2013 0.1 °C, 2016
Max 1hr Temp Rise 1.2 °C 23:37 1.2 °C 2.0 °C, 2015 0.3 °C, 2016
Max 1hr Hum Rise 7% 20:46 5% 8%, 2014 1%, 2009
Max 10m Temp Fall 0.5 °C 20:27 0.4 °C 0.5 °C, 2019 0.2 °C, 2010
Max 1hr Temp Fall 1.8 °C 20:43 1.3 °C 1.8 °C, 2019 0.4 °C, 2016
Max 1hr Hum Fall 7% 11:14 7% 9%, 2018 1%, 2016
Max 10m Wind Speed 14.1 mph 11:22 11.2 mph 15.2 mph, 2018 6.2 mph, 2009
Minimum Feels-like -2.3 °C 22:38 -1.1 °C 11.5 °C, 2016 -7.4 °C, 2010
Maximum Feels-like 7.3 °C 14:26 9.1 °C 14.7 °C, 2016 3.1 °C, 2017
Mean Feels-like 3.7 °C 4.4 °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 7.4 °C (+2.5) 6.0 °C (+1.0) 11.2 °C (+6.3), 2014 2.3 °C (-2.6), 2009
Humidity Range 27% 18% 27%, 2019 3%, 2009
Pressure Range 35 hPa 12 hPa 35 hPa, 2019 3 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7 [98%]33 hrs (229%) [50%] 7 [98%], 2019 1 [14%], 2009
Wet Hours 3
[Mean rain rate: 0.4 mm/h]
16 hrs (89%) [7.4%] 3, 2019 0, 2010
Cloud Cover Sunny with periods of Mostly Sunny
Events Maximum possible sunshine
Comments o.night rn
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 4.5 °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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