Daily Report for 30th September 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.3 °C (+1.2) 06:39 10.9 °C (-0.3) 14.8 °C (+4.7), 2014 5.8 °C (-4.4), 2012
Maximum Temperature 17.1 °C (+0.3) 12:14 18.4 °C (-0.3) 27.4 °C (+10.6), 2011 16.1 °C (-0.7), 2010
Mean Temperature 13.8 °C (+0.7) 14.5 °C (-0.3) 19.4 °C, 2011 12.1 °C, 2012
Minimum Humidity 58% 11:50 60% 74%, 2009 37%, 2015
Maximum Humidity 92% 23:46 92% 98%, 2010 81%, 2016
Mean Humidity 81% 79% 84%, 2010 68%, 2015
Minimum Pressure 1014 hPa 23:30 1010 hPa 1031 hPa, 2015 1005 hPa, 2013
Maximum Pressure 1018 hPa 05:46 1016 hPa 1034 hPa, 2015 1009 hPa, 2013
Mean Pressure 1016 hPa 1013 hPa 1032 hPa, 2015 1007 hPa, 2013
Mean Wind Speed 4.6 mph (+0.7) 4.4 mph (+0.5) 6.0 mph, 2012 2.2 mph, 2011
Maximum Wind Speed 13.1 mph 12:24 12.4 mph 17.7 mph, 2016 7.6 mph, 2009
Maximum Gust 19.6 mph 11:53 19.2 mph 27.4 mph, 2016 10.5 mph, 2009
Mean Wind Direction SW
Rainfall 0.8 mm 58.3 mm (102%) 0.8 mm, 2017
Maximum Hourly Rain 0.6 mm 23:51 0.7 mm, 2016
Maximum 10-min Rain 0.4 mm 23:00 0.7 mm, 2016
Maximum Rain Rate 4.0 mm/h 23:00 24 mm/h, 2016
Minimum Dew Point 8.5 °C 11:47 8.5 °C 12.0 °C, 2014 2.5 °C, 2015
Maximum Dew Point 12.6 °C 23:21 13.1 °C 17.2 °C, 2011 10.3 °C, 2016
Mean Dew Point 10.5 °C 10.7 °C 13.7 °C, 2014 7.2 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 11.3 °C 06:39 11.1 °C 14.7 °C, 2014 5.8 °C, 2012
Day Maximum (09-21) 17.1 °C 12:14 18.4 °C 27.4 °C, 2011 16.1 °C, 2010
Max 10m Temp Rise 0.6 °C 10:20 0.6 °C 0.8 °C, 2010 0.4 °C, 2014
Max 1hr Temp Rise 2.6 °C 11:10 2.0 °C 3.1 °C, 2011 1.4 °C, 2013
Max 1hr Hum Rise 9% 13:35 11% 11%, 2011 5%, 2010
Max 10m Temp Fall 0.3 °C 13:12 0.6 °C 0.5 °C, 2016 0.3 °C, 2010
Max 1hr Temp Fall 0.9 °C 13:19 1.7 °C 1.6 °C, 2013 0.9 °C, 2010
Max 1hr Hum Fall 16% 11:18 11% 17%, 2015 7%, 2014
Max 10m Wind Speed 10.4 mph 12:37 9.2 mph 14.3 mph, 2016 6.0 mph, 2009
Minimum Feels-like 12.2 °C 05:14 11.3 °C 17.9 °C, 2014 3.8 °C, 2012
Maximum Feels-like 18.3 °C 17:02 20.6 °C 30.2 °C, 2011 17.5 °C, 2010
Mean Feels-like 15.3 °C 16.1 °C 22.1 °C, 2011 12.6 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.8 °C (-0.8) 7.6 °C (-0.0) 13.9 °C (+7.3), 2011 4.5 °C (-2.1), 2009
Humidity Range 34% 32% 55%, 2011 14%, 2009
Pressure Range 4 hPa 6 hPa 7 hPa, 2012 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2.7 [26%]115 hrs (83%) [34%] 10.6 [100%], 2011 1 [9%], 2009
Wet Hours 2
[Mean rain rate: 0.4 mm/h]
55 hrs (133%) [7.6%] 2, 2017 0, 2009
Cloud Cover am: Overcast transitioned to Sunny
pm: Mostly Cloudy
Events None
Comments late eve 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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