Daily Report for 25th December 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -0.4 °C (-3.3) 05:47 5.1 °C (+1.9) 9.9 °C (+7.0), 2016 -2.8 °C (-5.7), 2010
Maximum Temperature 7.9 °C (+0.6) 21:58 9.9 °C (+1.9) 14.5 °C (+7.2), 2015 -0.2 °C (-7.5), 2010
Mean Temperature 4.4 °C (-1.4) 7.8 °C (+1.9) 11.8 °C, 2016 -1.5 °C, 2010
Minimum Humidity 88% 16:47 78% 93%, 2009 67%, 2014
Maximum Humidity 98% 11:58 93% 98%, 2009 81%, 2016
Mean Humidity 93% 86% 97%, 2009 78%, 2014
Minimum Pressure 1033 hPa 23:36 1009 hPa 1033 hPa, 2018 980 hPa, 2013
Maximum Pressure 1036 hPa 00:02 1019 hPa 1036 hPa, 2018 988 hPa, 2013
Mean Pressure 1035 hPa 1014 hPa 1035 hPa, 2018 984 hPa, 2013
Mean Wind Speed 0.6 mph (-4.5) 5.5 mph (+0.4) 10.9 mph, 2017 0.6 mph, 2018
Maximum Wind Speed 5.4 mph 16:24 14.4 mph 25.2 mph, 2017 5.4 mph, 2018
Maximum Gust 8.1 mph 16:25 23.1 mph 43.8 mph, 2017 8.1 mph, 2018
Mean Wind Direction SSW
Rainfall 0.0 mm 55.6 mm (123%) 12.6 mm, 2012
Maximum Hourly Rain n/a 3.7, 2012
Maximum 10-min Rain n/a 1.7, 2012
Maximum Rain Rate n/a 24, 2012
Minimum Dew Point -1.1 °C 05:44 3.1 °C 6.0 °C, 2011 -4.8 °C, 2010
Maximum Dew Point 6.4 °C 21:58 7.9 °C 12.4 °C, 2015 -1.7 °C, 2010
Mean Dew Point 3.4 °C 5.6 °C 8.2 °C, 2016 -2.9 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -0.4 °C 05:47 5.9 °C 9.5 °C, 2016 -2.4 °C, 2010
Day Maximum (09-21) * 7.8 °C * 19:17 9.8 °C 14.3 °C, 2015 -0.7 °C, 2010
Max 10m Temp Rise 0.4 °C 06:25 0.3 °C 0.8 °C, 2013 0.1 °C, 2011
Max 1hr Temp Rise 1.5 °C 07:11 1.1 °C 1.8 °C, 2013 0.5 °C, 2010
Max 1hr Hum Rise 2% 06:27 5% 7%, 2017 2%, 2009
Max 10m Temp Fall 0.3 °C 05:09 0.4 °C 0.9 °C, 2017 0.2 °C, 2009
Max 1hr Temp Fall 0.9 °C 05:29 1.1 °C 3.4 °C, 2017 0.4 °C, 2015
Max 1hr Hum Fall 7% 14:41 6% 10%, 2014 2%, 2010
Max 10m Wind Speed 3.6 mph 16:33 10.8 mph 19.3 mph, 2017 3.6 mph, 2018
Minimum Feels-like -0.4 °C 05:29 2.2 °C 6.2 °C, 2016 -6.6 °C, 2010
Maximum Feels-like 7.9 °C 21:34 10.4 °C 17.0 °C, 2015 -0.4 °C, 2010
Mean Feels-like 4.1 °C 6.6 °C 12.3 °C, 2016 -3.3 °C, 2010
Air-frost Hrs 1 hrs 0.1 hrs 24 hrs, 2010 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.3 °C (+3.9) 4.8 °C (+0.1) 8.6 °C (+4.2), 2015 2.6 °C (-1.8), 2010
Humidity Range 10% 15% 20%, 2015 5%, 2009
Pressure Range 3 hPa 10 hPa 24 hPa, 2017 3 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]52 hrs (133%) [29%] 6 [86%], 2014 0 [0%], 2010
Wet Hours 062 hrs (124%) [10%] 6, 2012 0, 2010
Cloud Cover Overcast
Events Air Frost
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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