Daily Report for 28th April 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.2 °C (+1.4) 23:18 8.4 °C (+3.4) 9.8 °C (+4.0), 2014 0.1 °C (-5.7), 2013
Maximum Temperature 10.4 °C (-3.8) 00:02 15.6 °C (+2.9) 21.6 °C (+7.4), 2010 9.3 °C (-4.9), 2012
Mean Temperature 8.3 °C (-1.2) 11.8 °C (+3.1) 15.1 °C, 2010 7.0 °C, 2009
Minimum Humidity 88% 18:31 61% 88%, 2018 31%, 2015
Maximum Humidity 95% 03:09 89% 97%, 2009 77%, 2015
Mean Humidity 91% 77% 94%, 2012 52%, 2015
Minimum Pressure 1005 hPa 00:06 1008 hPa 1016 hPa, 2011 997 hPa, 2009
Maximum Pressure 1014 hPa 22:18 1015 hPa 1026 hPa, 2010 1005 hPa, 2009
Mean Pressure 1010 hPa 1012 hPa 1020 hPa, 2010 1001 hPa, 2009
Mean Wind Speed 3.4 mph (-1.5) 5.3 mph (+0.4) 7.4 mph, 2015 1.9 mph, 2017
Maximum Wind Speed 9.2 mph 04:35 13.8 mph 19.5 mph, 2016 7.4 mph, 2017
Maximum Gust 13.8 mph 04:53 21.3 mph 29.4 mph, 2016 10.5 mph, 2017
Mean Wind Direction N
Rainfall 2.0 mm 48.5 mm (106%) 10.6 mm, 2012
Maximum Hourly Rain 0.8 mm 03:50 2.2 mm, 2012
Maximum 10-min Rain 0.4 mm 00:35 1.3 mm, 2016
Maximum Rain Rate 4.0 mm/h 00:35 18 mm/h, 2016
Minimum Dew Point 5.6 °C 21:48 5.0 °C 5.6 °C, 2018 -3.8 °C, 2015
Maximum Dew Point 9.4 °C 00:58 9.8 °C 11.0 °C, 2014 1.2 °C, 2015
Mean Dew Point 7.0 °C 7.5 °C 7.8 °C, 2014 -1.0 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 7.7 °C * 07:20 8.5 °C 9.8 °C, 2014 0.1 °C, 2013
Day Maximum (09-21) * 8.5 °C * 17:36 15.5 °C 21.6 °C, 2010 8.5 °C, 2018
Max 10m Temp Rise 0.2 °C 11:52 0.5 °C 1.4 °C, 2009 0.2 °C, 2012
Max 1hr Temp Rise 0.3 °C 15:03 1.8 °C 5.5 °C, 2013 0.3 °C, 2018
Max 1hr Hum Rise 3% 19:51 9% 13%, 2015 3%, 2012
Max 10m Temp Fall 0.5 °C 04:05 0.5 °C 0.9 °C, 2009 0.2 °C, 2012
Max 1hr Temp Fall 1.6 °C 04:40 1.6 °C 2.0 °C, 2009 0.8 °C, 2012
Max 1hr Hum Fall 3% 17:20 9% 18%, 2013 2%, 2012
Max 10m Wind Speed 6.5 mph 04:58 10.3 mph 14.2 mph, 2016 5.1 mph, 2017
Minimum Feels-like 4.2 °C 22:38 6.2 °C 7.5 °C, 2010 -1.4 °C, 2013
Maximum Feels-like 11.4 °C 00:02 16.4 °C 22.2 °C, 2010 9.4 °C, 2012
Mean Feels-like 7.1 °C 11.7 °C 15.3 °C, 2010 5.9 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.2 °C (-5.3) 7.3 °C (-0.5) 13.3 °C (+4.8), 2010 3.2 °C (-5.3), 2018
Humidity Range 7% 28% 53%, 2013 7%, 2018
Pressure Range 9 hPa 7 hPa 11 hPa, 2010 2 hPa, 2017
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]112 hrs (88%) [32%] 11 [83%], 2015 0 [0%], 2012
Wet Hours 6
[Mean rain rate: 0.3 mm/h]
75 hrs (175%) [11%] 15, 2012 0, 2010
Cloud Cover Overcast
Events None
Comments -13 Rain spells
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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Webcam Summary of Cloud Conditions

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