Daily Report for 17th March 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -1.7 °C (-5.4) 20:47 3.4 °C (+0.2) 7.2 °C (+3.5), 2012 -1.7 °C (-5.4), 2018
Maximum Temperature 7.1 °C (-3.3) 00:02 9.1 °C (-0.7) 15.4 °C (+5.0), 2009 7.1 °C (-3.3), 2018
Mean Temperature 0.5 °C (-4.4) 6.0 °C (-0.2) 10.6 °C, 2014 0.5 °C, 2018
Minimum Humidity 78% 13:53 70% 78%, 2013 43%, 2016
Maximum Humidity 93% 02:51 93% 98%, 2011 78%, 2017
Mean Humidity 87% 84% 89%, 2011 65%, 2010
Minimum Pressure 1006 hPa 00:24 992 hPa 1032 hPa, 2009 987 hPa, 2013
Maximum Pressure 1008 hPa 10:41 1000 hPa 1037 hPa, 2009 993 hPa, 2013
Mean Pressure 1007 hPa 996 hPa 1034 hPa, 2009 990 hPa, 2013
Mean Wind Speed 10.9 mph (+5.7) 6.4 mph (+1.2) 10.9 mph, 2018 2.3 mph, 2011
Maximum Wind Speed 21.2 mph 14:47 15.5 mph 21.2 mph, 2018 7.8 mph, 2011
Maximum Gust 32.3 mph 13:20 23.9 mph 32.3 mph, 2018 10.7 mph, 2011
Mean Wind Direction NE
Rainfall / Snow-melt approx. 4.0 mm 32.8 mm (136%) 4.8 mm, 2012
Maximum Hourly Rain n/a 2.6, 2012
Maximum 10-min Rain n/a 1.5, 2012
Maximum Rain Rate n/a 15, 2012
Minimum Dew Point -4.1 °C 15:15 1.0 °C 4.7 °C, 2012 -4.1 °C, 2018
Maximum Dew Point 5.6 °C 00:02 5.9 °C 8.6 °C, 2012 5.0 °C, 2013
Mean Dew Point -1.5 °C 3.5 °C 6.6 °C, 2012 -1.5 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * -0.3 °C * 08:55 3.8 °C 7.9 °C, 2012 -0.3 °C, 2018
Day Maximum (09-21) * 0.1 °C * 12:29 8.6 °C 15.4 °C, 2009 0.1 °C, 2018
Max 10m Temp Rise 0.1 °C 04:23 0.4 °C 1.2 °C, 2009 0.1 °C, 2018
Max 1hr Temp Rise 0.4 °C 10:22 1.4 °C 3.1 °C, 2009 0.4 °C, 2018
Max 1hr Hum Rise 5% 08:17 8% 18%, 2011 4%, 2014
Max 10m Temp Fall 0.5 °C 01:10 0.4 °C 1.8 °C, 2009 0.3 °C, 2015
Max 1hr Temp Fall 1.6 °C 01:36 1.3 °C 3.3 °C, 2009 1.0 °C, 2015
Max 1hr Hum Fall 8% 10:25 9% 22%, 2016 4%, 2012
Max 10m Wind Speed 16.7 mph 12:56 12.1 mph 16.7 mph, 2018 5.2 mph, 2011
Minimum Feels-like -9.2 °C 17:59 -0.9 °C 5.1 °C, 2012 -9.2 °C, 2018
Maximum Feels-like 4.0 °C 00:05 8.3 °C 14.5 °C, 2010 4.0 °C, 2018
Mean Feels-like -5.5 °C 3.5 °C 10.1 °C, 2014 -5.5 °C, 2018
Air-frost Hrs 15 hrs 4 hrs 15 hrs, 2018 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.8 °C (+2.1) 5.7 °C (-0.9) 10.1 °C (+3.4), 2009 3.6 °C (-3.1), 2012
Humidity Range 15% 23% 49%, 2016 13%, 2012
Pressure Range 2 hPa 8 hPa 12 hPa, 2017 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]26 hrs (47%) [15%] 9.2 [86%], 2009 0 [0%], 2012
Wet Hours 12
[Mean rain rate: 0.3 mm/h]
55 hrs (191%) [14%] 12, 2018 , 2009
Cloud Cover Overcast
Events Snowfall: ~4 cm
Lying Snow (at 09z): trace amount
Air Frost
Comments o.night Rain -> Snow, continued prolonged Snow spells throughout
Extra Comments amount highly uncertain
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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