Daily Report for 19th December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.7 °C (+3.6) 01:23 5.2 °C (+1.8) 13.2 °C (+10.1), 2015 -5.3 °C (-8.4), 2010
Maximum Temperature 8.9 °C (+1.4) 11:52 9.8 °C (+1.6) 16.0 °C (+8.4), 2015 0.1 °C (-7.5), 2010
Mean Temperature 7.8 °C (+2.5) 7.8 °C (+1.7) 14.8 °C, 2015 -2.6 °C, 2010
Minimum Humidity 81% 14:57 77% 86%, 2017 57%, 2014
Maximum Humidity 94% 04:46 93% 98%, 2012 82%, 2016
Mean Humidity 88% 86% 94%, 2012 76%, 2014
Minimum Pressure 1004 hPa 06:16 1008 hPa 1034 hPa, 2017 988 hPa, 2019
Maximum Pressure 1006 hPa 12:40 1017 hPa 1036 hPa, 2017 1000 hPa, 2010
Mean Pressure 1005 hPa 1012 hPa 1035 hPa, 2017 996 hPa, 2010
Mean Wind Speed 5.5 mph (+0.4) 5.8 mph (+0.7) 8.8 mph, 2015 0.5 mph, 2016
Maximum Wind Speed 12.6 mph 20:29 14.6 mph 18.1 mph, 2014 4.7 mph, 2016
Maximum Gust 19.6 mph 06:07 23.6 mph 28.4 mph, 2014 6.3 mph, 2016
Mean Wind Direction SSW
Rainfall 2.0 mm 46.7 mm (136%) 7.5 mm, 2019
Maximum Hourly Rain 0.9 mm 06:10 3.7 mm, 2013
Maximum 10-min Rain 0.4 mm 02:32 2.0 mm, 2014
Maximum Rain Rate 4.4 mm/h 02:32 30 mm/h, 2014
Minimum Dew Point 4.8 °C 17:43 2.9 °C 9.4 °C, 2015 -8.0 °C, 2010
Maximum Dew Point 7.4 °C 05:43 7.8 °C 13.5 °C, 2015 -1.6 °C, 2010
Mean Dew Point 6.0 °C 5.5 °C 11.2 °C, 2015 -4.4 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 6.7 °C 01:37 6.0 °C 12.6 °C, 2015 -4.3 °C, 2010
Day Maximum (09-21) 8.9 °C 12:53 9.7 °C 16.0 °C, 2015 0.1 °C, 2010
Max 10m Temp Rise 0.3 °C 02:37 0.3 °C 0.3 °C, 2010 0.2 °C, 2011
Max 1hr Temp Rise 0.7 °C 05:43 1.1 °C 1.4 °C, 2017 0.3 °C, 2014
Max 1hr Hum Rise 6% 18:54 6% 9%, 2013 2%, 2015
Max 10m Temp Fall 0.2 °C 06:21 0.3 °C 0.9 °C, 2013 0.2 °C, 2015
Max 1hr Temp Fall 0.5 °C 16:42 1.0 °C 2.1 °C, 2013 0.4 °C, 2016
Max 1hr Hum Fall 5% 06:28 6% 17%, 2014 2%, 2016
Max 10m Wind Speed 10.0 mph 20:34 10.9 mph 13.9 mph, 2019 2.5 mph, 2016
Minimum Feels-like 3.2 °C 20:26 1.9 °C 14.9 °C, 2015 -9.8 °C, 2010
Maximum Feels-like 8.2 °C 12:11 10.3 °C 18.6 °C, 2015 0.0 °C, 2010
Mean Feels-like 5.4 °C 6.5 °C 16.7 °C, 2015 -5.9 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 23 hrs, 2010 0 hrs, 2012
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 2.2 °C (-2.3) 4.7 °C (-0.2) 7.6 °C (+3.1), 2014 1.9 °C (-2.6), 2016
Humidity Range 13% 16% 34%, 2014 3%, 2016
Pressure Range 3 hPa 10 hPa 18 hPa, 2013 2 hPa, 2017
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2 [29%]39 hrs (131%) [29%] 6.5 [93%], 2009 0 [0%], 2010
Wet Hours 4
[Mean rain rate: 0.5 mm/h]
47 hrs (124%) [10%] 7, 2012 0, 2009
Cloud Cover am: Mostly Cloudy
pm: Partly Cloudy
Events None
Comments dark Rain spells
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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