Daily Report for 30th April 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.7 °C (-1.3) 04:35 8.1 °C (+3.1) 10.9 °C (+4.9), 2011 2.4 °C (-3.6), 2016
Maximum Temperature 8.7 °C (-5.8) 17:18 15.1 °C (+2.3) 20.4 °C (+5.9), 2014 8.7 °C (-5.8), 2018
Mean Temperature 6.4 °C (-3.6) 11.5 °C (+2.7) 15.1 °C, 2011 6.4 °C, 2018
Minimum Humidity 62% 19:15 62% 62%, 2018 36%, 2013
Maximum Humidity 90% 10:35 89% 97%, 2014 71%, 2017
Mean Humidity 78% 78% 78%, 2018 52%, 2017
Minimum Pressure 1004 hPa 10:07 1008 hPa 1022 hPa, 2013 997 hPa, 2017
Maximum Pressure 1010 hPa 23:53 1015 hPa 1027 hPa, 2013 1008 hPa, 2017
Mean Pressure 1007 hPa 1011 hPa 1024 hPa, 2013 1000 hPa, 2017
Mean Wind Speed 7.9 mph (+3.0) 5.4 mph (+0.5) 7.9 mph, 2018 2.8 mph, 2014
Maximum Wind Speed 17.2 mph 04:13 14.0 mph 18.1 mph, 2011 10.9 mph, 2014
Maximum Gust 28.8 mph 03:14 21.8 mph 28.8 mph, 2018 17.0 mph, 2014
Mean Wind Direction N
Rainfall 4.8 mm 53.3 mm (109%) 4.8 mm, 2018
Maximum Hourly Rain 0.8 mm 10:00 3.0 mm, 2010
Maximum 10-min Rain 0.2 mm 04:24 1.4 mm, 2010
Maximum Rain Rate 1.0 mm/h 03:12 30 mm/h, 2010
Minimum Dew Point 1.0 °C 21:16 4.8 °C 5.9 °C, 2010 -3.1 °C, 2016
Maximum Dew Point 3.8 °C 10:35 9.4 °C 12.5 °C, 2014 2.9 °C, 2013
Mean Dew Point 2.8 °C 7.3 °C 8.0 °C, 2010 -0.9 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 4.7 °C 05:19 8.3 °C 10.9 °C, 2011 2.4 °C, 2016
Day Maximum (09-21) 8.7 °C 17:18 15.0 °C 20.4 °C, 2014 8.7 °C, 2018
Max 10m Temp Rise 0.4 °C 11:29 0.5 °C 0.8 °C, 2013 0.4 °C, 2011
Max 1hr Temp Rise 0.9 °C 12:07 1.7 °C 3.5 °C, 2013 0.9 °C, 2018
Max 1hr Hum Rise 6% 02:04 8% 13%, 2013 5%, 2009
Max 10m Temp Fall 0.3 °C 01:37 0.5 °C 0.9 °C, 2009 0.3 °C, 2018
Max 1hr Temp Fall 0.9 °C 22:45 1.5 °C 2.2 °C, 2015 0.9 °C, 2018
Max 1hr Hum Fall 9% 12:19 9% 20%, 2014 6%, 2017
Max 10m Wind Speed 13.0 mph 07:01 10.5 mph 13.0 mph, 2018 8.1 mph, 2014
Minimum Feels-like -1.2 °C 04:08 5.7 °C 11.3 °C, 2011 -1.2 °C, 2018
Maximum Feels-like 8.0 °C 17:55 15.8 °C 20.4 °C, 2014 8.0 °C, 2018
Mean Feels-like 2.8 °C 11.1 °C 15.4 °C, 2011 2.8 °C, 2018
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.0 °C (-4.5) 7.0 °C (-0.8) 13.6 °C (+5.0), 2014 4.0 °C (-4.5), 2018
Humidity Range 28% 27% 60%, 2014 24%, 2009
Pressure Range 6 hPa 7 hPa 13 hPa, 2016 3 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]112 hrs (81%) [30%] 13.4 [100%], 2011 0 [0%], 2018
Wet Hours 12
[Mean rain rate: 0.4 mm/h]
87 hrs (189%) [12%] 12, 2018 0, 2011
Cloud Cover Overcast
Events None
Comments 01-15 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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Webcam Summary of Cloud Conditions

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