Daily Report for 31st July 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 16.3 °C (+2.4) 06:51 15.9 °C (+2.5) 17.3 °C (+3.4), 2010 8.5 °C (-5.4), 2015
Maximum Temperature 25.0 °C (+2.3) 16:40 27.2 °C (+4.8) 25.0 °C (+2.3), 2014 20.0 °C (-2.7), 2012
Mean Temperature 19.9 °C (+2.4) 21.7 °C (+3.6) 20.6 °C, 2014 15.9 °C, 2015
Minimum Humidity 43% 15:30 41% 66%, 2013 36%, 2015
Maximum Humidity 93% 06:03 85% 93%, 2018 73%, 2016
Mean Humidity 67% 62% 79%, 2012 57%, 2016
Minimum Pressure 1013 hPa 06:16 1015 hPa 1015 hPa, 2009 1010 hPa, 2017
Maximum Pressure 1020 hPa 23:26 1019 hPa 1023 hPa, 2009 1013 hPa, 2010
Mean Pressure 1017 hPa 1017 hPa 1019 hPa, 2009 1011 hPa, 2017
Mean Wind Speed 5.3 mph (+1.0) 3.7 mph (-0.6) 5.8 mph, 2013 2.3 mph, 2015
Maximum Wind Speed 14.5 mph 16:47 11.5 mph 14.8 mph, 2016 9.7 mph, 2015
Maximum Gust 18.4 mph 08:25 17.7 mph 25.8 mph, 2016 12.3 mph, 2015
Mean Wind Direction SW
Rainfall 5.4 mm 33.2 mm (79%) 5.4 mm, 2018
Maximum Hourly Rain 3.8 mm 05:23 3.8 mm, 2018
Maximum 10-min Rain 1.8 mm 04:34 1.8 mm, 2018
Maximum Rain Rate 48 mm/h 04:25 48 mm/h, 2018
Minimum Dew Point 10.8 °C 15:09 10.9 °C 12.9 °C, 2013 4.4 °C, 2015
Maximum Dew Point 15.6 °C 05:23 16.1 °C 17.8 °C, 2010 10.7 °C, 2009
Mean Dew Point 13.2 °C 13.5 °C 15.3 °C, 2013 6.8 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 16.3 °C 06:51 15.9 °C 17.3 °C, 2010 8.5 °C, 2015
Day Maximum (09-21) 25.0 °C 16:41 27.2 °C 25.0 °C, 2014 20.0 °C, 2012
Max 10m Temp Rise 0.8 °C 12:29 0.8 °C 0.8 °C, 2009 0.4 °C, 2013
Max 1hr Temp Rise 2.1 °C 10:58 2.6 °C 3.8 °C, 2015 1.8 °C, 2010
Max 1hr Hum Rise 9% 20:48 13% 11%, 2012 4%, 2016
Max 10m Temp Fall 0.6 °C 18:28 0.8 °C 0.7 °C, 2009 0.3 °C, 2010
Max 1hr Temp Fall 2.1 °C 18:38 2.4 °C 2.1 °C, 2018 1.1 °C, 2013
Max 1hr Hum Fall 13% 10:14 13% 15%, 2015 8%, 2012
Max 10m Wind Speed 10.1 mph 18:36 8.5 mph 10.8 mph, 2016 3.7 mph, 2009
Minimum Feels-like 19.8 °C 23:57 18.5 °C 19.8 °C, 2018 8.5 °C, 2015
Maximum Feels-like 27.4 °C 17:36 30.6 °C 28.3 °C, 2010 21.7 °C, 2015
Mean Feels-like 22.9 °C 24.9 °C 23.5 °C, 2013 16.1 °C, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.7 °C (-0.1) 11.3 °C (+2.3) 13.2 °C (+4.4), 2015 6.5 °C (-2.3), 2010
Humidity Range 50% 45% 51%, 2015 24%, 2013
Pressure Range 7 hPa 4 hPa 8 hPa, 2009 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10 [71%]257 hrs (139%) [57%] 12 [85%], 2011 0.1 [1%], 2012
Wet Hours 3
[Mean rain rate: 1.8 mm/h]
18 hrs (53%) [2.4%] 7, 2012 0, 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? No
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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