Daily Report for 27th April 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.3 °C (+1.6) 08:13 8.4 °C (+3.5) 9.3 °C (+3.6), 2012 1.5 °C (-4.2), 2017
Maximum Temperature 11.2 °C (-2.9) 18:28 15.8 °C (+3.2) 20.8 °C (+6.7), 2010 9.9 °C (-4.2), 2009
Mean Temperature 9.5 °C (-0.6) 11.9 °C (+3.3) 14.1 °C, 2010 6.4 °C, 2016
Minimum Humidity 78% 00:04 60% 78%, 2018 32%, 2016
Maximum Humidity 93% 23:22 89% 93%, 2018 77%, 2017
Mean Humidity 86% 77% 86%, 2018 53%, 2015
Minimum Pressure 1005 hPa 18:00 1008 hPa 1025 hPa, 2010 994 hPa, 2009
Maximum Pressure 1016 hPa 00:01 1015 hPa 1028 hPa, 2010 1004 hPa, 2009
Mean Pressure 1009 hPa 1012 hPa 1026 hPa, 2010 999 hPa, 2009
Mean Wind Speed 3.5 mph (-1.4) 5.3 mph (+0.4) 5.7 mph, 2012 3.4 mph, 2010
Maximum Wind Speed 11.8 mph 14:49 14.0 mph 18.7 mph, 2013 9.2 mph, 2010
Maximum Gust 17.3 mph 14:34 21.6 mph 25.3 mph, 2013 13.4 mph, 2010
Mean Wind Direction SSE
Rainfall 7.0 mm 46.5 mm (105%) 7.0 mm, 2018
Maximum Hourly Rain 2.2 mm 15:17 2.3 mm, 2012
Maximum 10-min Rain 0.8 mm 14:28 1.2 mm, 2012
Maximum Rain Rate 12 mm/h 14:19 20 mm/h, 2012
Minimum Dew Point 5.2 °C 08:50 5.0 °C 5.3 °C, 2012 -4.2 °C, 2016
Maximum Dew Point 9.4 °C 21:30 9.8 °C 10.4 °C, 2010 1.7 °C, 2016
Mean Dew Point 7.3 °C 7.5 °C 7.3 °C, 2018 -1.6 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 7.3 °C 08:14 8.5 °C 9.5 °C, 2012 1.5 °C, 2017
Day Maximum (09-21) 11.2 °C 18:28 15.7 °C 20.8 °C, 2010 9.9 °C, 2009
Max 10m Temp Rise 0.8 °C 12:17 0.5 °C 0.8 °C, 2011 0.6 °C, 2010
Max 1hr Temp Rise 1.9 °C 12:41 1.9 °C 2.7 °C, 2017 1.2 °C, 2009
Max 1hr Hum Rise 6% 14:33 9% 12%, 2011 6%, 2010
Max 10m Temp Fall 0.3 °C 06:59 0.5 °C 0.8 °C, 2012 0.3 °C, 2010
Max 1hr Temp Fall 0.8 °C 07:43 1.6 °C 2.4 °C, 2016 0.8 °C, 2018
Max 1hr Hum Fall 6% 13:11 10% 30%, 2015 4%, 2009
Max 10m Wind Speed 8.6 mph 14:38 10.5 mph 14.4 mph, 2013 8.2 mph, 2011
Minimum Feels-like 4.3 °C 08:28 6.2 °C 6.7 °C, 2012 -2.6 °C, 2016
Maximum Feels-like 12.1 °C 18:43 16.6 °C 21.5 °C, 2010 10.7 °C, 2013
Mean Feels-like 9.1 °C 11.8 °C 14.4 °C, 2010 4.5 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.9 °C (-4.5) 7.4 °C (-0.3) 13.8 °C (+5.4), 2010 3.9 °C (-4.5), 2018
Humidity Range 15% 29% 51%, 2016 15%, 2018
Pressure Range 10 hPa 7 hPa 12 hPa, 2012 1 hPa, 2015
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]112 hrs (91%) [33%] 11 [84%], 2011 0 [0%], 2018
Wet Hours 8
[Mean rain rate: 0.9 mm/h]
69 hrs (167%) [11%] 8, 2018 0, 2010
Cloud Cover Overcast
Events None
Comments Rain spells throughout
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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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