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 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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