Daily Report for 13th December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 1.4 °C (-1.9) 20:36 5.7 °C (+2.2) 7.8 °C (+4.5), 2013 -2.3 °C (-5.6), 2012
Maximum Temperature 4.9 °C (-3.1) 13:23 10.6 °C (+2.2) 13.5 °C (+5.5), 2016 1.1 °C (-6.9), 2012
Mean Temperature 2.8 °C (-2.5) 8.5 °C (+2.2) 11.3 °C, 2016 -0.3 °C, 2012
Minimum Humidity 68% 14:08 77% 85%, 2010 57%, 2011
Maximum Humidity 90% 03:12 93% 98%, 2010 82%, 2016
Mean Humidity 81% 86% 93%, 2010 75%, 2011
Minimum Pressure 1017 hPa 06:12 1008 hPa 1025 hPa, 2009 971 hPa, 2019
Maximum Pressure 1022 hPa 23:53 1018 hPa 1029 hPa, 2009 985 hPa, 2019
Mean Pressure 1019 hPa 1012 hPa 1027 hPa, 2009 980 hPa, 2019
Mean Wind Speed 5.8 mph (+0.7) 5.9 mph (+0.8) 9.6 mph, 2011 2.5 mph, 2012
Maximum Wind Speed 15.7 mph 11:43 14.8 mph 20.8 mph, 2011 6.7 mph, 2012
Maximum Gust 23.0 mph 11:34 24.1 mph 33.4 mph, 2017 10.0 mph, 2012
Mean Wind Direction E
Rainfall 0.0 mm 23.1 mm (98%) 10.1 mm, 2017
Maximum Hourly Rain n/a 4.9, 2011
Maximum 10-min Rain n/a 3, 2011
Maximum Rain Rate n/a 30, 2011
Minimum Dew Point -1.3 °C 15:27 3.6 °C 6.3 °C, 2013 -3.7 °C, 2012
Maximum Dew Point 1.0 °C 00:00 8.5 °C 10.9 °C, 2011 0.1 °C, 2012
Mean Dew Point -0.2 °C 6.3 °C 8.7 °C, 2013 -2.3 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 1.6 °C * 04:59 6.8 °C 7.7 °C, 2013 -2.3 °C, 2012
Day Maximum (09-21) 4.9 °C 13:17 10.5 °C 13.5 °C, 2016 0.8 °C, 2012
Max 10m Temp Rise 0.3 °C 11:36 0.3 °C 0.6 °C, 2009 0.2 °C, 2013
Max 1hr Temp Rise 0.9 °C 10:55 1.1 °C 2.1 °C, 2014 0.5 °C, 2019
Max 1hr Hum Rise 6% 16:27 5% 12%, 2011 2%, 2016
Max 10m Temp Fall 0.3 °C 02:47 0.4 °C 1.8 °C, 2015 0.2 °C, 2010
Max 1hr Temp Fall 0.7 °C 02:47 1.0 °C 4.5 °C, 2015 0.7 °C, 2018
Max 1hr Hum Fall 7% 11:17 6% 13%, 2014 1%, 2015
Max 10m Wind Speed 11.8 mph 11:43 11.1 mph 17.4 mph, 2011 4.9 mph, 2012
Minimum Feels-like -3.4 °C 06:53 2.8 °C 5.7 °C, 2016 -6.2 °C, 2012
Maximum Feels-like 2.6 °C 13:13 11.4 °C 14.9 °C, 2016 1.1 °C, 2012
Mean Feels-like -0.8 °C 7.7 °C 11.9 °C, 2016 -2.2 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 11 hrs, 2012 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.5 °C (-1.3) 4.9 °C (-0.0) 7.2 °C (+2.4), 2011 2.9 °C (-1.9), 2019
Humidity Range 22% 15% 39%, 2011 2%, 2016
Pressure Range 5 hPa 10 hPa 15 hPa, 2017 2 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7 [99%]28 hrs (136%) [30%] 7 [99%], 2018 0 [0%], 2013
Wet Hours 029 hrs (110%) [9.1%] 10, 2015 0, 2010
Cloud Cover Sunny
Events Maximum possible sunshine
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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