Daily Report for 5th September 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.3 °C (+2.3) 23:59 11.4 °C (-0.6) 15.5 °C (+3.5), 2013 7.7 °C (-4.3), 2015
Maximum Temperature 20.4 °C (-0.3) 14:53 21.0 °C (+0.2) 28.1 °C (+7.4), 2013 14.8 °C (-5.9), 2015
Mean Temperature 17.5 °C (+1.0) 16.4 °C (-0.2) 21.1 °C, 2013 11.9 °C, 2015
Minimum Humidity 74% 14:55 57% 80%, 2016 40%, 2013
Maximum Humidity 92% 07:48 89% 97%, 2013 77%, 2012
Mean Humidity 86% 73% 89%, 2016 58%, 2012
Minimum Pressure 1012 hPa 17:31 1014 hPa 1024 hPa, 2012 1008 hPa, 2011
Maximum Pressure 1016 hPa 23:30 1020 hPa 1030 hPa, 2012 1015 hPa, 2011
Mean Pressure 1014 hPa 1017 hPa 1027 hPa, 2012 1011 hPa, 2013
Mean Wind Speed 6.3 mph (+2.4) 3.3 mph (-0.6) 8.0 mph, 2011 1.6 mph, 2014
Maximum Wind Speed 14.1 mph 14:29 10.5 mph 20.7 mph, 2011 6.7 mph, 2014
Maximum Gust 21.9 mph 21:43 16.5 mph 29.9 mph, 2011 8.7 mph, 2014
Mean Wind Direction SW
Rainfall 1.0 mm 9.3 mm (98%) 3.7 mm, 2016
Maximum Hourly Rain 0.8 mm 18:21 1.1 mm, 2016
Maximum 10-min Rain 0.4 mm 17:53 0.6 mm, 2016
Maximum Rain Rate 6 mm/h 17:53 6 mm/h, 2017
Minimum Dew Point 12.4 °C 23:53 8.5 °C 13.4 °C, 2016 4.4 °C, 2015
Maximum Dew Point 16.9 °C 15:20 14.1 °C 19.8 °C, 2016 8.7 °C, 2012
Mean Dew Point 15.2 °C 11.2 °C 16.4 °C, 2016 7.0 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 16.0 °C * 07:48 11.6 °C 16.0 °C, 2017 9.3 °C, 2015
Day Maximum (09-21) 20.4 °C 14:53 21.0 °C 28.1 °C, 2013 14.8 °C, 2015
Max 10m Temp Rise 0.7 °C 10:05 0.7 °C 1.3 °C, 2009 0.4 °C, 2014
Max 1hr Temp Rise 1.7 °C 10:13 2.2 °C 3.7 °C, 2013 1.0 °C, 2015
Max 1hr Hum Rise 10% 15:48 9% 15%, 2011 6%, 2012
Max 10m Temp Fall 0.7 °C 21:57 0.8 °C 1.2 °C, 2009 0.3 °C, 2010
Max 1hr Temp Fall 2.3 °C 22:43 1.6 °C 2.3 °C, 2013 0.8 °C, 2010
Max 1hr Hum Fall 8% 10:11 8% 17%, 2013 5%, 2016
Max 10m Wind Speed 10.7 mph 14:36 7.9 mph 13.3 mph, 2011 4.4 mph, 2014
Minimum Feels-like 16.8 °C 23:59 12.2 °C 19.2 °C, 2013 7.7 °C, 2015
Maximum Feels-like 24.9 °C 15:20 24.2 °C 31.8 °C, 2013 16.3 °C, 2015
Mean Feels-like 21.6 °C 18.4 °C 24.9 °C, 2013 12.6 °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 6.1 °C (-2.6) 9.5 °C (+0.8) 12.6 °C (+3.9), 2013 6.0 °C (-2.7), 2010
Humidity Range 18% 32% 57%, 2013 15%, 2016
Pressure Range 4 hPa 6 hPa 11 hPa, 2015 2 hPa, 2014
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.2 [2%]22 hrs (88%) [36%] 12 [99%], 2012 0 [0%], 2016
Wet Hours 2
[Mean rain rate: 0.5 mm/h]
15 hrs (220%) [13%] 7, 2016 0, 2009
Cloud Cover Overcast or Mostly Cloudy
Events None
Comments 15- Showers
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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