Daily Report for 22nd December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.7 °C (+4.7) 23:56 5.5 °C (+2.2) 11.6 °C (+8.6), 2014 -2.3 °C (-5.3), 2009
Maximum Temperature 11.1 °C (+3.7) 01:50 10.0 °C (+1.9) 14.9 °C (+7.5), 2015 1.3 °C (-6.1), 2009
Mean Temperature 9.6 °C (+4.2) 8.0 °C (+2.1) 13.5 °C, 2015 0.0 °C, 2009
Minimum Humidity 75% 14:18 77% 96%, 2009 59%, 2013
Maximum Humidity 90% 23:32 93% 98%, 2009 83%, 2016
Mean Humidity 85% 86% 98%, 2009 74%, 2013
Minimum Pressure 1006 hPa 00:05 1007 hPa 1034 hPa, 2017 983 hPa, 2009
Maximum Pressure 1022 hPa 23:07 1017 hPa 1037 hPa, 2017 990 hPa, 2009
Mean Pressure 1016 hPa 1012 hPa 1036 hPa, 2017 986 hPa, 2009
Mean Wind Speed 5.8 mph (+0.7) 6.0 mph (+0.9) 11.9 mph, 2015 2.9 mph, 2009
Maximum Wind Speed 17.9 mph 00:51 15.2 mph 23.5 mph, 2015 8.8 mph, 2016
Maximum Gust 26.5 mph 01:26 24.3 mph 43.4 mph, 2015 12.6 mph, 2016
Mean Wind Direction WSW
Rainfall 0.0 mm 51.0 mm (128%) 17.8 mm, 2012
Maximum Hourly Rain n/a 4.5, 2015
Maximum 10-min Rain n/a 2.7, 2015
Maximum Rain Rate n/a 126, 2015
Minimum Dew Point 6.2 °C 23:56 3.3 °C 9.0 °C, 2015 -2.6 °C, 2009
Maximum Dew Point 8.7 °C 00:18 8.0 °C 12.6 °C, 2012 0.9 °C, 2010
Mean Dew Point 7.1 °C 5.7 °C 11.1 °C, 2015 -0.3 °C, 2009
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 8.6 °C * 08:36 6.3 °C 11.2 °C, 2014 -0.3 °C, 2009
Day Maximum (09-21) 11.1 °C 13:28 9.9 °C 14.9 °C, 2015 1.3 °C, 2009
Max 10m Temp Rise 0.2 °C 10:06 0.3 °C 0.4 °C, 2016 0.1 °C, 2010
Max 1hr Temp Rise 0.9 °C 10:44 1.1 °C 1.8 °C, 2016 0.2 °C, 2010
Max 1hr Hum Rise 5% 16:55 6% 8%, 2013 1%, 2009
Max 10m Temp Fall 0.2 °C 03:30 0.3 °C 0.7 °C, 2013 0.1 °C, 2012
Max 1hr Temp Fall 0.9 °C 04:19 1.0 °C 1.9 °C, 2016 0.3 °C, 2012
Max 1hr Hum Fall 5% 13:48 6% 12%, 2013 1%, 2012
Max 10m Wind Speed 12.9 mph 00:54 11.4 mph 18.1 mph, 2015 6.9 mph, 2016
Minimum Feels-like 5.2 °C 23:19 2.3 °C 11.9 °C, 2015 -5.3 °C, 2010
Maximum Feels-like 11.7 °C 01:33 10.5 °C 16.8 °C, 2015 1.1 °C, 2010
Mean Feels-like 8.5 °C 6.7 °C 15.3 °C, 2015 -1.3 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 8 hrs, 2009 0 hrs, 2011
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.4 °C (-1.0) 4.5 °C (-0.3) 6.3 °C (+1.9), 2012 1.5 °C (-2.9), 2010
Humidity Range 15% 16% 25%, 2013 2%, 2009
Pressure Range 16 hPa 10 hPa 16 hPa, 2018 3 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5.5 [79%]48 hrs (139%) [30%] 6.5 [93%], 2011 0 [0%], 2010
Wet Hours 054 hrs (123%) [10%] 16, 2012 0, 2009
Cloud Cover am: Sunny
pm: Mostly Sunny
Events None
Comments -
Extra Comments
Issues delayed tip reassigned
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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