Daily Report for 23rd December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.1 °C (+3.1) 23:36 5.5 °C (+2.2) 10.8 °C (+7.8), 2014 -3.9 °C (-6.9), 2009
Maximum Temperature 12.7 °C (+5.3) 15:27 10.1 °C (+2.1) 12.9 °C (+5.5), 2012 1.9 °C (-5.5), 2010
Mean Temperature 8.8 °C (+4.2) 8.0 °C (+2.2) 11.7 °C, 2014 -0.5 °C, 2009
Minimum Humidity 87% 17:21 77% 98%, 2009 63%, 2015
Maximum Humidity 95% 11:32 93% 98%, 2009 76%, 2014
Mean Humidity 92% 86% 98%, 2009 72%, 2014
Minimum Pressure 1014 hPa 12:39 1007 hPa 1030 hPa, 2017 978 hPa, 2013
Maximum Pressure 1025 hPa 23:51 1017 hPa 1037 hPa, 2017 991 hPa, 2009
Mean Pressure 1018 hPa 1012 hPa 1033 hPa, 2017 990 hPa, 2009
Mean Wind Speed 4.3 mph (-0.8) 5.9 mph (+0.8) 12.1 mph, 2013 1.5 mph, 2009
Maximum Wind Speed 14.3 mph 13:36 15.1 mph 31.7 mph, 2013 8.1 mph, 2009
Maximum Gust 23.0 mph 12:57 24.3 mph 47.6 mph, 2013 13.8 mph, 2009
Mean Wind Direction W
Rainfall 4.6 mm 55.6 mm (134%) 15.2 mm, 2013
Maximum Hourly Rain 1.0 mm 08:32 2.8 mm, 2011
Maximum 10-min Rain 0.4 mm 08:21 1.4 mm, 2011
Maximum Rain Rate 2.0 mm/h 08:21 20 mm/h, 2011
Minimum Dew Point 4.9 °C 23:54 3.4 °C 7.1 °C, 2012 -4.8 °C, 2010
Maximum Dew Point 11.3 °C 15:27 8.1 °C 12.6 °C, 2012 -1.9 °C, 2010
Mean Dew Point 7.7 °C 5.8 °C 9.6 °C, 2012 -3.0 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 7.3 °C * 02:13 6.3 °C 11.8 °C, 2012 -3.9 °C, 2009
Day Maximum (09-21) 12.7 °C 15:27 10.0 °C 12.8 °C, 2014 1.9 °C, 2010
Max 10m Temp Rise 0.3 °C 12:17 0.3 °C 0.4 °C, 2009 0.1 °C, 2011
Max 1hr Temp Rise 1.0 °C 12:37 1.1 °C 1.5 °C, 2009 0.3 °C, 2012
Max 1hr Hum Rise 5% 18:21 6% 9%, 2011 0%, 2009
Max 10m Temp Fall 1.4 °C 17:21 0.4 °C 1.4 °C, 2018 0.1 °C, 2012
Max 1hr Temp Fall 4.2 °C 18:10 1.1 °C 4.2 °C, 2018 0.3 °C, 2013
Max 1hr Hum Fall 5% 17:21 6% 8%, 2014 0%, 2009
Max 10m Wind Speed 10.9 mph 13:44 11.3 mph 23.2 mph, 2013 7.2 mph, 2009
Minimum Feels-like 2.9 °C 23:21 2.4 °C 10.8 °C, 2014 -6.8 °C, 2010
Maximum Feels-like 14.6 °C 15:27 10.7 °C 15.5 °C, 2012 -1.0 °C, 2010
Mean Feels-like 8.2 °C 6.8 °C 12.4 °C, 2012 -3.5 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 13 hrs, 2009 0 hrs, 2011
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.6 °C (+2.2) 4.6 °C (-0.2) 7.7 °C (+3.3), 2009 2.0 °C (-2.4), 2014
Humidity Range 8% 16% 27%, 2015 0%, 2009
Pressure Range 11 hPa 10 hPa 34 hPa, 2013 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]48 hrs (133%) [29%] 5.3 [76%], 2015 0 [0%], 2010
Wet Hours 8
[Mean rain rate: 0.6 mm/h]
62 hrs (135%) [11%] 13, 2013 0, 2010
Cloud Cover Overcast
Events None
Comments am, eve Rain
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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