Daily Report for 9th August 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.5 °C (-1.1) 23:17 15.7 °C (+2.0) 16.1 °C (+2.6), 2009 11.5 °C (-2.1), 2016
Maximum Temperature 18.5 °C (-4.1) 00:00 27.8 °C (+5.1) 26.1 °C (+3.5), 2015 15.4 °C (-7.2), 2017
Mean Temperature 15.5 °C (-2.6) 21.9 °C (+3.6) 20.7 °C, 2015 13.9 °C, 2017
Minimum Humidity 67% 00:25 41% 78%, 2017 30%, 2015
Maximum Humidity 94% 23:43 88% 94%, 2014 71%, 2011
Mean Humidity 85% 64% 85%, 2018 52%, 2016
Minimum Pressure 1013 hPa 12:06 1016 hPa 1024 hPa, 2012 1003 hPa, 2014
Maximum Pressure 1018 hPa 23:52 1021 hPa 1027 hPa, 2012 1009 hPa, 2014
Mean Pressure 1014 hPa 1018 hPa 1026 hPa, 2012 1007 hPa, 2014
Mean Wind Speed 1.9 mph (-2.1) 3.1 mph (-0.9) 6.7 mph, 2016 1.8 mph, 2012
Maximum Wind Speed 8.6 mph 00:39 10.7 mph 17.1 mph, 2016 7.4 mph, 2012
Maximum Gust 13.8 mph 20:45 17.0 mph 24.2 mph, 2016 8.7 mph, 2012
Mean Wind Direction W
Rainfall 13.4 mm 13.8 mm (90%) 39.1 mm, 2017
Maximum Hourly Rain 4.4 mm 17:33 11.2 mm, 2017
Maximum 10-min Rain 1.6 mm 17:07 4.3 mm, 2017
Maximum Rain Rate 36 mm/h 17:02 48 mm/h, 2017
Minimum Dew Point 10.7 °C 09:45 11.6 °C 10.7 °C, 2018 3.3 °C, 2016
Maximum Dew Point 14.4 °C 16:40 16.7 °C 16.7 °C, 2013 8.3 °C, 2016
Mean Dew Point 12.9 °C 14.1 °C 12.9 °C, 2018 5.5 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 15.2 °C * 07:01 16.0 °C 16.1 °C, 2009 11.5 °C, 2016
Day Maximum (09-21) * 16.2 °C * 10:30 27.5 °C 26.1 °C, 2015 15.4 °C, 2017
Max 10m Temp Rise 0.2 °C 09:52 0.6 °C 1.1 °C, 2012 0.2 °C, 2017
Max 1hr Temp Rise 0.6 °C 08:21 2.7 °C 5.0 °C, 2012 0.6 °C, 2018
Max 1hr Hum Rise 12% 11:03 13% 12%, 2018 2%, 2017
Max 10m Temp Fall 0.6 °C 16:50 0.7 °C 0.7 °C, 2013 0.2 °C, 2017
Max 1hr Temp Fall 1.9 °C 17:40 2.7 °C 2.2 °C, 2013 0.8 °C, 2017
Max 1hr Hum Fall 17% 09:45 14% 18%, 2014 1%, 2017
Max 10m Wind Speed 7.0 mph 00:48 8.0 mph 13.5 mph, 2016 4.8 mph, 2009
Minimum Feels-like 14.5 °C 23:11 18.7 °C 18.6 °C, 2009 11.5 °C, 2016
Maximum Feels-like 20.9 °C 00:00 31.3 °C 27.8 °C, 2012 18.3 °C, 2017
Mean Feels-like 18.2 °C 25.5 °C 22.3 °C, 2012 15.7 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.0 °C (-3.0) 12.1 °C (+3.1) 13.5 °C (+4.5), 2012 2.3 °C (-6.7), 2017
Humidity Range 27% 46% 57%, 2012 8%, 2017
Pressure Range 5 hPa 5 hPa 13 hPa, 2017 3 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]95 hrs (171%) [76%] 12 [88%], 2015 0 [0%], 2017
Wet Hours 10
[Mean rain rate: 1.3 mm/h]
11 hrs (100%) [5.1%] 16, 2017 0, 2009
Cloud Cover Overcast
Events None
Comments 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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