Daily Report for 20th January 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -0.3 °C (-2.6) 05:55 1.6 °C (-0.8) 4.4 °C (+2.1), 2012 -3.6 °C (-5.9), 2015
Maximum Temperature 6.4 °C (-0.6) 14:41 7.2 °C (+0.2) 9.8 °C (+2.8), 2012 -0.3 °C (-7.3), 2013
Mean Temperature 2.5 °C (-1.6) 4.5 °C (-0.3) 7.6 °C, 2012 -1.0 °C, 2013
Minimum Humidity 45% 14:59 66% 87%, 2010 45%, 2017
Maximum Humidity 76% 12:54 83% 98%, 2013 76%, 2017
Mean Humidity 67% 76% 94%, 2014 67%, 2017
Minimum Pressure 1029 hPa 19:54 1020 hPa 1035 hPa, 2011 983 hPa, 2009
Maximum Pressure 1034 hPa 01:06 1028 hPa 1038 hPa, 2011 996 hPa, 2009
Mean Pressure 1031 hPa 1024 hPa 1036 hPa, 2011 990 hPa, 2009
Mean Wind Speed 2.3 mph (-2.9) 3.6 mph (-1.6) 7.0 mph, 2012 0.4 mph, 2014
Maximum Wind Speed 7.8 mph 13:39 10.8 mph 16.1 mph, 2015 4.0 mph, 2016
Maximum Gust 11.5 mph 19:08 15.8 mph 22.3 mph, 2012 4.9 mph, 2016
Mean Wind Direction ENE
Rainfall 0.0 mm 48.0 mm (135%) 8.0 mm, 2013
Maximum Hourly Rain n/a 0.3, 2012
Maximum 10-min Rain n/a n/a
Maximum Rain Rate n/a n/a
Minimum Dew Point -5.4 °C 16:51 -2.2 °C 0.8 °C, 2011 -5.4 °C, 2016
Maximum Dew Point -1.9 °C 21:16 3.3 °C 6.6 °C, 2014 -1.9 °C, 2017
Mean Dew Point -3.3 °C 0.6 °C 3.6 °C, 2012 -3.3 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -0.3 °C 05:55 2.6 °C 4.4 °C, 2012 -3.6 °C, 2015
Day Maximum (09-21) 6.4 °C 14:41 7.1 °C 9.8 °C, 2012 -0.3 °C, 2013
Max 10m Temp Rise 0.4 °C 11:16 0.3 °C 0.7 °C, 2014 0.1 °C, 2010
Max 1hr Temp Rise 1.8 °C 11:51 1.3 °C 2.6 °C, 2014 0.1 °C, 2010
Max 1hr Hum Rise 8% 19:07 5% 8%, 2017 1%, 2010
Max 10m Temp Fall 0.3 °C 16:28 0.4 °C 0.5 °C, 2014 0.1 °C, 2010
Max 1hr Temp Fall 1.2 °C 16:43 1.4 °C 1.8 °C, 2014 0.3 °C, 2010
Max 1hr Hum Fall 10% 12:02 6% 10%, 2017 2%, 2013
Max 10m Wind Speed 5.9 mph 19:17 8.2 mph 11.1 mph, 2012 3.0 mph, 2016
Minimum Feels-like -3.1 °C 04:18 -1.9 °C 0.3 °C, 2014 -8.4 °C, 2013
Maximum Feels-like 6.1 °C 15:31 6.9 °C 9.4 °C, 2012 -0.5 °C, 2013
Mean Feels-like 0.8 °C 2.7 °C 5.1 °C, 2012 -4.4 °C, 2013
Air-frost Hrs 2 hrs 2 hrs 24 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.7 °C (+2.0) 5.6 °C (+1.1) 7.8 °C (+3.1), 2015 1.4 °C (-3.3), 2010
Humidity Range 31% 16% 31%, 2017 8%, 2010
Pressure Range 5 hPa 8 hPa 13 hPa, 2009 3 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours [0%]42 hrs (143%) [28%] 4 [52%], 2014 [0%], 2017
Wet Hours 64 hrs (147%) [13%] 13, 2013 , 2009
Cloud Cover not available
Events Air Frost
Comments
Extra Comments
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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