Daily Report for 27th February 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -4.3 °C (-6.9) 23:13 0.6 °C (-1.6) 6.5 °C (+3.9), 2009 -4.3 °C (-6.9), 2018
Maximum Temperature -0.1 °C (-8.8) 14:09 6.2 °C (-1.4) 14.0 °C (+5.3), 2009 -0.1 °C (-8.8), 2018
Mean Temperature -2.4 °C (-7.8) 3.6 °C (-1.5) 10.2 °C, 2009 -2.4 °C, 2018
Minimum Humidity 59% 17:45 65% 76%, 2010 47%, 2016
Maximum Humidity 88% 07:09 91% 98%, 2013 74%, 2016
Mean Humidity 77% 80% 89%, 2010 61%, 2016
Minimum Pressure 1020 hPa 23:15 1013 hPa 1032 hPa, 2013 982 hPa, 2017
Maximum Pressure 1029 hPa 00:30 1021 hPa 1035 hPa, 2013 999 hPa, 2017
Mean Pressure 1024 hPa 1017 hPa 1034 hPa, 2013 989 hPa, 2017
Mean Wind Speed 4.8 mph (-0.3) 5.8 mph (+0.7) 7.6 mph, 2017 4.0 mph, 2010
Maximum Wind Speed 13.8 mph 14:19 14.4 mph 18.9 mph, 2017 10.7 mph, 2012
Maximum Gust 19.6 mph 14:20 22.2 mph 27.3 mph, 2017 15.4 mph, 2012
Mean Wind Direction NE
Rainfall / Snow-melt approx. 0.5 mm 30.4 mm (79%) 9.1 mm, 2017
Maximum Hourly Rain n/a 5.6, 2017
Maximum 10-min Rain n/a 2, 2017
Maximum Rain Rate n/a 30, 2010
Minimum Dew Point -8.3 °C 17:45 -2.1 °C 3.7 °C, 2009 -8.3 °C, 2018
Maximum Dew Point -3.7 °C 14:09 2.8 °C 7.9 °C, 2010 -3.7 °C, 2018
Mean Dew Point -5.9 °C 0.3 °C 5.9 °C, 2012 -5.9 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * -4.1 °C * 07:05 1.3 °C 8.2 °C, 2017 -4.1 °C, 2018
Day Maximum (09-21) -0.1 °C 14:09 5.9 °C 14.0 °C, 2009 -0.1 °C, 2018
Max 10m Temp Rise 0.5 °C 09:57 0.5 °C 0.9 °C, 2010 0.3 °C, 2012
Max 1hr Temp Rise 1.6 °C 09:05 1.6 °C 1.9 °C, 2015 0.8 °C, 2017
Max 1hr Hum Rise 19% 12:24 9% 19%, 2018 4%, 2016
Max 10m Temp Fall 1.1 °C 14:27 0.5 °C 1.1 °C, 2018 0.2 °C, 2012
Max 1hr Temp Fall 1.8 °C 12:27 1.2 °C 1.8 °C, 2018 0.5 °C, 2012
Max 1hr Hum Fall 15% 16:15 9% 15%, 2014 4%, 2012
Max 10m Wind Speed 9.8 mph 11:33 11.2 mph 14.4 mph, 2017 7.6 mph, 2012
Minimum Feels-like -10.3 °C 08:05 -3.8 °C 3.2 °C, 2012 -10.3 °C, 2018
Maximum Feels-like -1.1 °C 15:24 4.8 °C 11.2 °C, 2012 -1.1 °C, 2018
Mean Feels-like -6.4 °C 0.4 °C 8.2 °C, 2012 -6.4 °C, 2018
Air-frost Hrs 24 hrs 3 hrs 24 hrs, 2018 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.2 °C (-1.9) 5.5 °C (+0.2) 7.5 °C (+1.4), 2009 3.2 °C (-2.9), 2016
Humidity Range 29% 26% 48%, 2014 11%, 2017
Pressure Range 9 hPa 8 hPa 17 hPa, 2017 3 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4.4 [46%]91 hrs (125%) [38%] 8 [83%], 2015 0 [0%], 2012
Wet Hours 1
[Mean rain rate: 0.5 mm/h]
53 hrs (105%) [8.1%] 5, 2017 , 2009
Cloud Cover am: Sunny transitioned to Mostly Cloudy
pm: Partly Cloudy
Events Snowfall: ~0.5 cm
Air Frost
Comments 11-15 Snow shs
Extra Comments no 09z snow, but did get a dusting at 13z
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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Webcam Summary of Cloud Conditions

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