Daily Report for 31st March 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.2 °C (-0.2) 04:58 3.3 °C (-0.3) 11.2 °C (+6.7), 2017 -2.6 °C (-7.1), 2013
Maximum Temperature 8.6 °C (-3.0) 17:41 9.0 °C (-1.3) 17.7 °C (+6.1), 2011 5.6 °C (-6.0), 2013
Mean Temperature 5.6 °C (-1.6) 6.0 °C (-0.8) 14.3 °C, 2017 1.8 °C, 2013
Minimum Humidity 75% 17:23 67% 75%, 2018 37%, 2015
Maximum Humidity 93% 12:40 92% 97%, 2011 73%, 2009
Mean Humidity 87% 81% 87%, 2018 56%, 2015
Minimum Pressure 992 hPa 13:02 998 hPa 1022 hPa, 2009 981 hPa, 2010
Maximum Pressure 1006 hPa 23:59 1007 hPa 1025 hPa, 2009 1001 hPa, 2010
Mean Pressure 998 hPa 1003 hPa 1024 hPa, 2009 991 hPa, 2010
Mean Wind Speed 4.9 mph (-0.3) 6.0 mph (+0.8) 12.7 mph, 2015 1.5 mph, 2014
Maximum Wind Speed 12.3 mph 04:28 14.7 mph 30.1 mph, 2015 9.4 mph, 2014
Maximum Gust 19.6 mph 23:42 23.0 mph 39.8 mph, 2015 13.7 mph, 2014
Mean Wind Direction W
Rainfall 2.4 mm 67.1 mm (153%) 3.0 mm, 2011
Maximum Hourly Rain 1.8 mm 12:09 1.8 mm, 2018
Maximum 10-min Rain 0.6 mm 11:53 0.6 mm, 2018
Maximum Rain Rate 3.0 mm/h 11:23 3.0 mm/h, 2018
Minimum Dew Point 2.3 °C 03:34 0.6 °C 8.0 °C, 2011 -7.5 °C, 2013
Maximum Dew Point 5.4 °C 14:05 5.1 °C 12.6 °C, 2011 -1.6 °C, 2013
Mean Dew Point 3.5 °C 2.9 °C 9.6 °C, 2011 -5.2 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 4.2 °C 04:58 3.6 °C 13.0 °C, 2017 -2.6 °C, 2013
Day Maximum (09-21) 8.6 °C 17:41 8.7 °C 17.7 °C, 2011 5.6 °C, 2013
Max 10m Temp Rise 0.6 °C 13:52 0.5 °C 0.9 °C, 2013 0.3 °C, 2012
Max 1hr Temp Rise 1.8 °C 13:59 1.7 °C 3.6 °C, 2013 0.8 °C, 2012
Max 1hr Hum Rise 10% 18:23 9% 17%, 2015 5%, 2017
Max 10m Temp Fall 0.9 °C 18:03 0.5 °C 1.0 °C, 2015 0.2 °C, 2017
Max 1hr Temp Fall 1.9 °C 18:48 1.3 °C 2.2 °C, 2015 1.0 °C, 2013
Max 1hr Hum Fall 10% 14:09 10% 25%, 2015 9%, 2014
Max 10m Wind Speed 8.7 mph 23:47 11.4 mph 21.3 mph, 2015 6.2 mph, 2014
Minimum Feels-like -0.5 °C 02:55 -0.9 °C 11.2 °C, 2017 -6.1 °C, 2013
Maximum Feels-like 7.6 °C 16:59 8.2 °C 18.8 °C, 2011 4.0 °C, 2013
Mean Feels-like 2.8 °C 3.5 °C 14.4 °C, 2017 -0.8 °C, 2013
Air-frost Hrs 0 hrs 3 hrs 7 hrs, 2013 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.4 °C (-2.7) 5.7 °C (-1.0) 8.3 °C (+1.2), 2011 3.4 °C (-3.7), 2010
Humidity Range 18% 25% 53%, 2015 18%, 2018
Pressure Range 14 hPa 9 hPa 22 hPa, 2015 2 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [9%]62 hrs (59%) [19%] 8 [69%], 2016 0.1 [1%], 2012
Wet Hours 3
[Mean rain rate: 0.8 mm/h]
95 hrs (179%) [13%] 4, 2011 , 2009
Cloud Cover am: Overcast
pm: Mostly Cloudy
Events None
Comments 11-15, 18 Rain
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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Daily Graph of Conditions

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