Daily Report for 12th December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.6 °C (+0.3) 23:52 6.0 °C (+2.5) 5.8 °C (+2.5), 2015 -4.7 °C (-8.0), 2012
Maximum Temperature 7.3 °C (-0.8) 03:02 11.1 °C (+2.6) 13.2 °C (+5.1), 2015 2.1 °C (-6.0), 2012
Mean Temperature 6.0 °C (-0.3) 9.0 °C (+2.6) 10.0 °C, 2015 -1.1 °C, 2012
Minimum Humidity 63% 14:33 78% 97%, 2013 63%, 2018
Maximum Humidity 91% 07:14 93% 98%, 2009 88%, 2015
Mean Humidity 79% 86% 98%, 2013 79%, 2018
Minimum Pressure 1019 hPa 23:42 1007 hPa 1029 hPa, 2009 988 hPa, 2011
Maximum Pressure 1024 hPa 08:30 1017 hPa 1033 hPa, 2009 1005 hPa, 2014
Mean Pressure 1022 hPa 1012 hPa 1031 hPa, 2009 996 hPa, 2014
Mean Wind Speed 5.8 mph (+0.7) 5.9 mph (+0.8) 7.8 mph, 2015 1.1 mph, 2012
Maximum Wind Speed 14.1 mph 13:56 14.7 mph 22.5 mph, 2011 6.8 mph, 2016
Maximum Gust 19.6 mph 13:57 24.2 mph 40.9 mph, 2011 9.7 mph, 2012
Mean Wind Direction ESE
Rainfall 0.0 mm 21.0 mm (97%) 10.7 mm, 2014
Maximum Hourly Rain n/a 3, 2014
Maximum 10-min Rain n/a 1.1, 2014
Maximum Rain Rate n/a 18, 2014
Minimum Dew Point -0.9 °C 18:45 4.0 °C 3.5 °C, 2015 -5.1 °C, 2012
Maximum Dew Point 5.6 °C 00:10 9.1 °C 9.9 °C, 2015 1.4 °C, 2012
Mean Dew Point 2.5 °C 6.8 °C 6.9 °C, 2015 -2.2 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 4.4 °C * 21:02 7.2 °C 8.5 °C, 2014 -4.7 °C, 2012
Day Maximum (09-21) * 7.1 °C * 10:22 11.0 °C 13.2 °C, 2015 2.1 °C, 2012
Max 10m Temp Rise 0.2 °C 19:37 0.3 °C 0.6 °C, 2013 0.2 °C, 2014
Max 1hr Temp Rise 0.4 °C 12:10 1.1 °C 2.2 °C, 2013 0.4 °C, 2018
Max 1hr Hum Rise 4% 16:40 5% 9%, 2014 0%, 2013
Max 10m Temp Fall 0.3 °C 10:33 0.4 °C 0.5 °C, 2014 0.1 °C, 2015
Max 1hr Temp Fall 0.9 °C 18:37 1.1 °C 1.5 °C, 2010 0.2 °C, 2015
Max 1hr Hum Fall 8% 12:04 6% 9%, 2014 1%, 2013
Max 10m Wind Speed 10.8 mph 15:26 11.0 mph 15.4 mph, 2011 5.5 mph, 2012
Minimum Feels-like -1.7 °C 22:59 3.3 °C 3.5 °C, 2016 -7.9 °C, 2017
Maximum Feels-like 7.3 °C 03:19 12.2 °C 14.1 °C, 2015 2.1 °C, 2012
Mean Feels-like 3.1 °C 8.4 °C 9.6 °C, 2015 -2.2 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 12 hrs, 2012 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.7 °C (-1.1) 5.1 °C (+0.1) 8.6 °C (+3.8), 2013 3.6 °C (-1.2), 2009
Humidity Range 28% 15% 28%, 2018 1%, 2013
Pressure Range 5 hPa 10 hPa 20 hPa, 2011 3 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.3 [18%]21 hrs (109%) [24%] 6.3 [89%], 2017 0 [0%], 2014
Wet Hours 029 hrs (119%) [9.9%] 7, 2014 0, 2009
Cloud Cover am: Overcast transitioned to Mostly Cloudy
pm: Partly Cloudy transitioned to 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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