Daily Report for 30th December 2016

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 0.9 °C (-1.8) 00:16 4.9 °C (+1.7) 10.1 °C (+7.4), 2015 -1.4 °C (-4.1), 2014
Maximum Temperature 5.1 °C (-2.0) 22:42 9.9 °C (+2.2) 13.7 °C (+6.6), 2017 4.1 °C (-3.0), 2009
Mean Temperature 3.6 °C (-1.9) 7.6 °C (+1.9) 12.0 °C, 2015 1.3 °C, 2014
Minimum Humidity 81% 00:02 72% 98%, 2009 53%, 2015
Maximum Humidity 83% 12:19 82% 98%, 2009 81%, 2012
Mean Humidity 83% 78% 98%, 2009 72%, 2015
Minimum Pressure 1034 hPa 23:43 1024 hPa 1035 hPa, 2014 989 hPa, 2017
Maximum Pressure 1037 hPa 09:01 1030 hPa 1042 hPa, 2014 998 hPa, 2009
Mean Pressure 1036 hPa 1027 hPa 1038 hPa, 2014 994 hPa, 2009
Mean Wind Speed 1.7 mph (-3.4) 3.2 mph (-1.9) 11.5 mph, 2015 1.7 mph, 2016
Maximum Wind Speed 5.6 mph 16:31 9.6 mph 27.5 mph, 2013 5.6 mph, 2016
Maximum Gust 7.3 mph 14:38 14.0 mph 36.9 mph, 2013 7.3 mph, 2016
Mean Wind Direction WSW
Rainfall 0.0 mm 10.5 mm (19%) 6.3 mm, 2009
Maximum Hourly Rain n/a 3.1, 2015
Maximum 10-min Rain n/a 1.1, 2015
Maximum Rain Rate n/a 36, 2015
Minimum Dew Point -1.9 °C 00:02 1.2 °C 5.7 °C, 2018 -2.3 °C, 2014
Maximum Dew Point 2.4 °C 22:55 6.2 °C 10.0 °C, 2011 2.4 °C, 2016
Mean Dew Point 1.0 °C 3.9 °C 7.9 °C, 2017 -0.0 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 0.9 °C 00:16 5.3 °C 10.0 °C, 2015 -1.4 °C, 2014
Day Maximum (09-21) * 4.7 °C * 20:59 9.7 °C 13.7 °C, 2017 4.1 °C, 2009
Max 10m Temp Rise 0.5 °C 00:34 0.4 °C 0.5 °C, 2009 0.1 °C, 2010
Max 1hr Temp Rise 1.7 °C 01:15 1.2 °C 1.8 °C, 2017 0.3 °C, 2010
Max 1hr Hum Rise 2% 01:01 3% 10%, 2015 0%, 2009
Max 10m Temp Fall 0.2 °C 05:44 0.3 °C 0.5 °C, 2009 0.2 °C, 2010
Max 1hr Temp Fall 0.6 °C 05:19 1.1 °C 1.0 °C, 2015 0.3 °C, 2018
Max 1hr Hum Fall 0% 01:39 4% 13%, 2013 0%, 2009
Max 10m Wind Speed 4.5 mph 16:36 7.2 mph 18.6 mph, 2013 4.5 mph, 2016
Minimum Feels-like 0.2 °C 02:58 2.9 °C 10.2 °C, 2015 -5.6 °C, 2014
Maximum Feels-like 5.1 °C 22:13 10.3 °C 14.7 °C, 2017 4.1 °C, 2009
Mean Feels-like 2.6 °C 7.0 °C 12.3 °C, 2015 -1.0 °C, 2014
Air-frost Hrs 0 hrs 0.4 hrs 8 hrs, 2014 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.2 °C (-0.1) 5.1 °C (+0.4) 8.3 °C (+4.0), 2017 1.5 °C (-2.8), 2009
Humidity Range 2% 9% 36%, 2015 0%, 2009
Pressure Range 3 hPa 6 hPa 15 hPa, 2015 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]58 hrs (125%) [27%] 5 [71%], 2014 0 [0%], 2009
Wet Hours 016 hrs (27%) [2.2%] 15, 2009 0, 2012
Cloud Cover Overcast
Events Dense Fog
Comments Dense fog throughout
Extra Comments fog tip removed
Issues None known
Observer Absent? Yes - observations may be unreliable
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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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