Daily Report for 18th April 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.3 °C (+7.4) 05:49 7.5 °C (+2.8) 12.3 °C (+7.4), 2018 3.5 °C (-1.4), 2010
Maximum Temperature 24.9 °C (+12.1) 15:42 13.9 °C (+1.7) 24.9 °C (+12.1), 2018 11.4 °C (-1.4), 2012
Mean Temperature 18.3 °C (+9.7) 10.5 °C (+2.2) 18.3 °C, 2018 8.2 °C, 2012
Minimum Humidity 28% 16:33 66% 68%, 2012 28%, 2018
Maximum Humidity 84% 06:24 90% 97%, 2009 70%, 2013
Mean Humidity 63% 81% 81%, 2012 54%, 2017
Minimum Pressure 1025 hPa 00:07 1005 hPa 1026 hPa, 2015 977 hPa, 2012
Maximum Pressure 1030 hPa 10:30 1013 hPa 1032 hPa, 2017 992 hPa, 2012
Mean Pressure 1027 hPa 1009 hPa 1029 hPa, 2017 984 hPa, 2012
Mean Wind Speed 5.2 mph (+0.3) 5.2 mph (+0.3) 10.6 mph, 2013 2.2 mph, 2010
Maximum Wind Speed 16.2 mph 14:45 13.8 mph 20.8 mph, 2013 7.1 mph, 2010
Maximum Gust 24.2 mph 14:46 21.6 mph 30.1 mph, 2013 10.0 mph, 2010
Mean Wind Direction S
Rainfall 0.0 mm 34.9 mm (119%) 3.4 mm, 2012
Maximum Hourly Rain n/a 1.2, 2012
Maximum 10-min Rain n/a 0.6, 2012
Maximum Rain Rate n/a 5, 2012
Minimum Dew Point 5.0 °C 16:33 4.7 °C 5.0 °C, 2018 -2.7 °C, 2017
Maximum Dew Point 13.4 °C 11:59 9.0 °C 13.4 °C, 2018 1.3 °C, 2017
Mean Dew Point 10.4 °C 7.0 °C 10.4 °C, 2018 -0.8 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.3 °C 05:49 7.7 °C 12.3 °C, 2018 3.5 °C, 2010
Day Maximum (09-21) 24.9 °C 15:42 13.7 °C 24.9 °C, 2018 11.4 °C, 2012
Max 10m Temp Rise 0.5 °C 08:32 0.5 °C 1.2 °C, 2009 0.5 °C, 2014
Max 1hr Temp Rise 2.1 °C 09:10 1.6 °C 3.4 °C, 2011 1.6 °C, 2012
Max 1hr Hum Rise 16% 20:27 7% 24%, 2013 4%, 2016
Max 10m Temp Fall 0.7 °C 20:04 0.4 °C 2.5 °C, 2013 0.4 °C, 2015
Max 1hr Temp Fall 3.4 °C 20:32 1.4 °C 4.3 °C, 2013 1.4 °C, 2012
Max 1hr Hum Fall 13% 14:08 8% 14%, 2014 8%, 2017
Max 10m Wind Speed 10.8 mph 16:55 10.2 mph 14.9 mph, 2013 8.0 mph, 2016
Minimum Feels-like 13.4 °C 05:16 4.9 °C 13.4 °C, 2018 0.6 °C, 2015
Maximum Feels-like 26.6 °C 14:41 14.5 °C 26.6 °C, 2018 11.7 °C, 2012
Mean Feels-like 19.8 °C 10.0 °C 19.8 °C, 2018 6.3 °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 12.6 °C (+4.7) 6.3 °C (-1.1) 16.0 °C (+8.1), 2010 5.4 °C (-2.5), 2012
Humidity Range 56% 23% 56%, 2018 21%, 2012
Pressure Range 5 hPa 8 hPa 15 hPa, 2012 3 hPa, 2015
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 12.7 [100%]50 hrs (62%) [23%] 12.7 [100%], 2018 [0%], 2019
Wet Hours 055 hrs (197%) [13%] 4, 2012 , 2019
Cloud Cover Sunny
Events Maximum possible sunshine
Comments -
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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