Daily Report for 10th December 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 0.2 °C (-3.2) 08:58 3.4 °C (-0.1) 9.5 °C (+6.1), 2015 0.2 °C (-3.2), 2017
Maximum Temperature 2.6 °C (-5.7) 03:24 7.2 °C (-1.4) 13.7 °C (+5.4), 2016 2.6 °C (-5.7), 2017
Mean Temperature 0.9 °C (-4.4) 5.4 °C (-0.7) 12.0 °C, 2016 0.9 °C, 2017
Minimum Humidity 74% 02:41 75% 83%, 2013 53%, 2014
Maximum Humidity 96% 22:26 90% 98%, 2013 79%, 2016
Mean Humidity 92% 84% 92%, 2017 71%, 2014
Minimum Pressure 972 hPa 12:24 1014 hPa 1030 hPa, 2013 972 hPa, 2017
Maximum Pressure 1004 hPa 00:00 1025 hPa 1033 hPa, 2009 1004 hPa, 2017
Mean Pressure 982 hPa 1019 hPa 1031 hPa, 2013 982 hPa, 2017
Mean Wind Speed 3.4 mph (-1.7) 5.2 mph (+0.2) 9.2 mph, 2015 2.6 mph, 2013
Maximum Wind Speed 12.6 mph 03:27 12.8 mph 23.0 mph, 2014 8.7 mph, 2011
Maximum Gust 17.3 mph 06:44 20.6 mph 33.7 mph, 2014 12.8 mph, 2011
Mean Wind Direction NE
Rainfall / Snow-melt approx. 18.6 mm 22.1 mm (122%) 18.6 mm, 2017
Maximum Hourly Rain 4.6 mm 06:55 4.6 mm, 2017
Maximum 10-min Rain 1.0 mm 06:41 1.0 mm, 2017
Maximum Rain Rate 12 mm/h 06:34 30 mm/h, 2014
Minimum Dew Point -2.2 °C 02:11 0.8 °C 6.0 °C, 2015 -2.5 °C, 2011
Maximum Dew Point 1.4 °C 06:11 4.9 °C 10.4 °C, 2014 0.6 °C, 2011
Mean Dew Point -0.2 °C 2.8 °C 8.3 °C, 2016 -1.0 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 0.2 °C 08:49 4.0 °C 11.2 °C, 2016 0.2 °C, 2017
Day Maximum (09-21) * 1.0 °C * 18:29 7.0 °C 13.7 °C, 2016 1.0 °C, 2017
Max 10m Temp Rise 0.7 °C 02:28 0.3 °C 0.7 °C, 2017 0.2 °C, 2012
Max 1hr Temp Rise 1.8 °C 02:42 1.1 °C 2.3 °C, 2013 0.4 °C, 2016
Max 1hr Hum Rise 11% 04:12 6% 11%, 2017 2%, 2016
Max 10m Temp Fall 0.4 °C 08:12 0.4 °C 0.7 °C, 2013 0.2 °C, 2010
Max 1hr Temp Fall 1.4 °C 08:19 1.1 °C 2.5 °C, 2016 0.7 °C, 2010
Max 1hr Hum Fall 12% 02:37 6% 24%, 2014 3%, 2012
Max 10m Wind Speed 9.1 mph 07:29 9.8 mph 17.6 mph, 2014 6.8 mph, 2011
Minimum Feels-like -4.8 °C 08:46 -1.2 °C 6.6 °C, 2015 -4.8 °C, 2017
Maximum Feels-like 2.3 °C 02:37 6.9 °C 14.8 °C, 2016 2.3 °C, 2017
Mean Feels-like -1.5 °C 2.9 °C 12.4 °C, 2016 -1.5 °C, 2017
Air-frost Hrs 0 hrs 0.7 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 2.4 °C (-2.5) 3.8 °C (-1.3) 7.9 °C (+3.0), 2013 2.4 °C (-2.5), 2017
Humidity Range 22% 16% 39%, 2014 4%, 2016
Pressure Range 32 hPa 11 hPa 32 hPa, 2017 1 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]16 hrs (102%) [22%] 6.5 [92%], 2011 0 [0%], 2010
Wet Hours 12
[Mean rain rate: 1.6 mm/h]
16 hrs (82%) [6.8%] 12, 2017 0, 2010
Cloud Cover Overcast
Events Snowfall: ~6 cm
Lying Snow (at 09z): ~4 cm
Comments 03-08 Rain -> 08-15 Snow, mostly settling
Extra Comments
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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