Daily Report for 28th December 2016

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -1.2 °C (-4.0) 08:48 5.2 °C (+2.0) 9.4 °C (+6.6), 2015 -1.3 °C (-4.1), 2014
Maximum Temperature 3.4 °C (-3.8) 14:33 10.2 °C (+2.4) 13.7 °C (+6.5), 2015 3.4 °C (-3.8), 2016
Mean Temperature 1.1 °C (-3.9) 7.9 °C (+2.2) 11.5 °C, 2015 1.1 °C, 2016
Minimum Humidity 80% 03:15 72% 81%, 2012 60%, 2011
Maximum Humidity 83% 13:36 81% 98%, 2009 83%, 2016
Mean Humidity 82% 77% 93%, 2010 74%, 2011
Minimum Pressure 1041 hPa 20:11 1024 hPa 1041 hPa, 2016 990 hPa, 2013
Maximum Pressure 1045 hPa 03:05 1029 hPa 1045 hPa, 2016 1006 hPa, 2009
Mean Pressure 1043 hPa 1027 hPa 1043 hPa, 2016 997 hPa, 2013
Mean Wind Speed 0.5 mph (-4.6) 3.3 mph (-1.8) 8.2 mph, 2011 0.5 mph, 2016
Maximum Wind Speed 4.7 mph 14:52 9.9 mph 18.1 mph, 2011 4.7 mph, 2016
Maximum Gust 7.3 mph 14:52 14.5 mph 27.9 mph, 2011 7.3 mph, 2016
Mean Wind Direction SE
Rainfall 0.0 mm 10.5 mm (21%) 4.4 mm, 2010
Maximum Hourly Rain n/a 2.2, 2010
Maximum 10-min Rain n/a 0.8, 2010
Maximum Rain Rate n/a 20, 2010
Minimum Dew Point -4.1 °C 03:32 1.5 °C 5.8 °C, 2015 -4.3 °C, 2014
Maximum Dew Point 0.7 °C 14:32 6.5 °C 11.1 °C, 2012 0.7 °C, 2014
Mean Dew Point -1.6 °C 4.1 °C 7.7 °C, 2012 -2.1 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -1.2 °C 08:46 5.7 °C 9.4 °C, 2015 -1.2 °C, 2009
Day Maximum (09-21) 3.4 °C 14:33 10.0 °C 13.7 °C, 2015 3.4 °C, 2016
Max 10m Temp Rise 0.4 °C 11:00 0.4 °C 0.5 °C, 2012 0.2 °C, 2010
Max 1hr Temp Rise 1.4 °C 11:36 1.2 °C 1.6 °C, 2014 0.7 °C, 2011
Max 1hr Hum Rise 3% 04:25 3% 6%, 2014 3%, 2011
Max 10m Temp Fall 0.3 °C 07:23 0.3 °C 0.5 °C, 2014 0.2 °C, 2009
Max 1hr Temp Fall 1.2 °C 17:18 1.1 °C 2.4 °C, 2014 0.5 °C, 2010
Max 1hr Hum Fall 1% 01:21 4% 8%, 2014 1%, 2010
Max 10m Wind Speed 3.5 mph 14:56 7.5 mph 12.4 mph, 2012 3.5 mph, 2016
Minimum Feels-like -1.4 °C 10:36 3.1 °C 7.3 °C, 2015 -6.2 °C, 2017
Maximum Feels-like 3.6 °C 16:18 10.5 °C 13.9 °C, 2015 2.8 °C, 2017
Mean Feels-like 0.8 °C 7.4 °C 11.7 °C, 2015 -2.2 °C, 2017
Air-frost Hrs 6 hrs 0.4 hrs 6 hrs, 2016 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.6 °C (+0.2) 5.0 °C (+0.4) 8.2 °C (+3.8), 2012 4.3 °C (-0.1), 2015
Humidity Range 3% 10% 32%, 2014 3%, 2016
Pressure Range 4 hPa 6 hPa 23 hPa, 2014 4 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [14%]51 hrs (118%) [26%] 7.2 [103%], 2017 0 [0%], 2010
Wet Hours 016 hrs (29%) [2.4%] 6, 2012 0, 2009
Cloud Cover Overcast with periods of Sunny
Events Dense Fog
Air Frost
Comments -13 Dense fog
Extra Comments Cleaned the radiation shield; fog tip removed
Issues None known
Observer Absent? No
Notes
Times of extremes are computed using the midpoint time of the extremum (if the value persisted for >1 minute).
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; their reliablity is questionable and they are provided for interest only.
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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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