Daily Report for 31st July 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.7 °C (-0.2) 05:56 15.2 °C (+1.8) 17.3 °C (+3.4), 2010 8.5 °C (-5.4), 2015
Maximum Temperature 22.8 °C (+0.1) 16:12 23.4 °C (+0.9) 25.0 °C (+2.3), 2014 20.0 °C (-2.7), 2012
Mean Temperature 18.1 °C (-0.0) 19.1 °C (+1.4) 20.6 °C, 2014 15.9 °C, 2015
Minimum Humidity 44% 17:53 48% 66%, 2013 36%, 2015
Maximum Humidity 83% 06:33 80% 92%, 2010 73%, 2016
Mean Humidity 62% 65% 79%, 2012 57%, 2016
Minimum Pressure 1010 hPa 09:22 1011 hPa 1015 hPa, 2009 1010 hPa, 2017
Maximum Pressure 1013 hPa 15:28 1017 hPa 1023 hPa, 2009 1013 hPa, 2010
Mean Pressure 1011 hPa 1014 hPa 1019 hPa, 2009 1011 hPa, 2017
Mean Wind Speed 5.4 mph (+1.1) 4.1 mph (-0.2) 5.8 mph, 2013 2.3 mph, 2015
Maximum Wind Speed 12.4 mph 14:25 11.9 mph 14.8 mph, 2016 9.7 mph, 2015
Maximum Gust 18.9 mph 13:30 18.1 mph 25.8 mph, 2016 12.3 mph, 2015
Mean Wind Direction WSW
Rainfall 0.0 mm 89.0 mm (212%) 3.2 mm, 2012
Maximum Hourly Rain n/a 1.9, 2010
Maximum 10-min Rain n/a 0.8, 2010
Maximum Rain Rate n/a 4, 2010
Minimum Dew Point 7.9 °C 21:42 9.3 °C 12.9 °C, 2013 4.4 °C, 2015
Maximum Dew Point 12.8 °C 08:04 14.4 °C 17.8 °C, 2010 10.7 °C, 2009
Mean Dew Point 10.3 °C 11.9 °C 15.3 °C, 2013 6.8 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.7 °C 05:56 15.3 °C 17.3 °C, 2010 8.5 °C, 2015
Day Maximum (09-21) 22.8 °C 16:12 23.4 °C 25.0 °C, 2014 20.0 °C, 2012
Max 10m Temp Rise 0.6 °C 12:23 0.6 °C 0.8 °C, 2009 0.4 °C, 2013
Max 1hr Temp Rise 2.2 °C 07:57 2.1 °C 3.8 °C, 2015 1.8 °C, 2010
Max 1hr Hum Rise 7% 22:56 8% 11%, 2012 4%, 2016
Max 10m Temp Fall 0.4 °C 12:43 0.5 °C 0.7 °C, 2009 0.3 °C, 2010
Max 1hr Temp Fall 1.8 °C 20:22 1.9 °C 1.8 °C, 2017 1.1 °C, 2013
Max 1hr Hum Fall 10% 08:59 10% 15%, 2015 8%, 2012
Max 10m Wind Speed 10.1 mph 14:31 8.8 mph 10.8 mph, 2016 3.7 mph, 2009
Minimum Feels-like 15.3 °C 05:28 16.8 °C 19.7 °C, 2013 8.5 °C, 2015
Maximum Feels-like 24.4 °C 16:10 26.0 °C 28.3 °C, 2010 21.7 °C, 2015
Mean Feels-like 19.5 °C 21.4 °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 9.1 °C (+0.3) 8.2 °C (-0.8) 13.2 °C (+4.4), 2015 6.5 °C (-2.3), 2010
Humidity Range 39% 32% 51%, 2015 24%, 2013
Pressure Range 3 hPa 6 hPa 8 hPa, 2009 2 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9 [64%]166 hrs (89%) [36%] 12 [85%], 2011 0.1 [1%], 2012
Wet Hours 045 hrs (131%) [6%] 7, 2012 0, 2009
Cloud Cover Mostly Sunny with periods of Partly Cloudy
Events None
Comments -
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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