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 5.4 °C, 2011 -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 0.5 °C, 2009
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 3 hPa, 2016
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 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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