Daily Report for 25th September 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.7 °C (+4.2) 08:27 10.4 °C (-0.9) 14.7 °C (+4.2), 2017 5.6 °C (-4.9), 2010
Maximum Temperature 18.1 °C (+0.7) 16:44 18.3 °C (-0.8) 20.9 °C (+3.5), 2011 13.4 °C (-4.0), 2010
Mean Temperature 15.9 °C (+2.5) 14.3 °C (-0.8) 17.3 °C, 2016 9.5 °C, 2010
Minimum Humidity 72% 17:20 59% 72%, 2017 46%, 2015
Maximum Humidity 94% 09:17 92% 97%, 2013 83%, 2010
Mean Humidity 87% 78% 87%, 2017 64%, 2016
Minimum Pressure 1018 hPa 04:46 1009 hPa 1026 hPa, 2009 988 hPa, 2012
Maximum Pressure 1022 hPa 22:45 1016 hPa 1028 hPa, 2009 989 hPa, 2012
Mean Pressure 1019 hPa 1012 hPa 1027 hPa, 2009 988 hPa, 2012
Mean Wind Speed 2.8 mph (-1.1) 4.5 mph (+0.6) 8.5 mph, 2016 1.5 mph, 2013
Maximum Wind Speed 8.1 mph 15:24 12.7 mph 20.6 mph, 2016 6.7 mph, 2013
Maximum Gust 11.5 mph 09:02 19.7 mph 29.0 mph, 2016 8.1 mph, 2013
Mean Wind Direction ENE
Rainfall 0.6 mm 31.9 mm (67%) 0.6 mm, 2012
Maximum Hourly Rain 0.4 mm 07:47 0.6 mm, 2012
Maximum 10-min Rain 0.2 mm 0.6 mm, 2012
Maximum Rain Rate 0.4 mm/h 07:47 0.4 mm/h, 2017
Minimum Dew Point 12.8 °C 20:39 8.1 °C 13.1 °C, 2013 2.3 °C, 2010
Maximum Dew Point 15.0 °C 15:41 12.7 °C 16.2 °C, 2013 6.0 °C, 2010
Mean Dew Point 13.8 °C 10.3 °C 14.3 °C, 2013 3.8 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 14.7 °C 08:27 10.7 °C 15.7 °C, 2016 5.6 °C, 2010
Day Maximum (09-21) 18.1 °C 16:44 18.3 °C 20.9 °C, 2011 13.4 °C, 2010
Max 10m Temp Rise 0.2 °C 13:26 0.6 °C 0.9 °C, 2014 0.2 °C, 2017
Max 1hr Temp Rise 0.7 °C 15:44 2.1 °C 2.9 °C, 2014 0.7 °C, 2017
Max 1hr Hum Rise 9% 18:19 11% 10%, 2015 6%, 2010
Max 10m Temp Fall 0.3 °C 18:14 0.6 °C 0.6 °C, 2012 0.2 °C, 2014
Max 1hr Temp Fall 1.0 °C 18:44 1.7 °C 2.7 °C, 2015 0.9 °C, 2014
Max 1hr Hum Fall 8% 16:04 11% 17%, 2015 8%, 2010
Max 10m Wind Speed 6.1 mph 16:06 9.4 mph 16.6 mph, 2016 4.8 mph, 2009
Minimum Feels-like 17.6 °C 23:47 10.5 °C 17.6 °C, 2017 0.9 °C, 2009
Maximum Feels-like 21.7 °C 15:51 20.3 °C 24.9 °C, 2013 13.4 °C, 2010
Mean Feels-like 19.2 °C 15.7 °C 20.4 °C, 2013 8.6 °C, 2010
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.4 °C (-3.5) 7.9 °C (+0.1) 11.3 °C (+4.4), 2009 3.4 °C (-3.5), 2017
Humidity Range 22% 33% 45%, 2015 22%, 2017
Pressure Range 4 hPa 6 hPa 11 hPa, 2016 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]103 hrs (88%) [36%] 10 [92%], 2009 0 [0%], 2017
Wet Hours 1.5
[Mean rain rate: 0.4 mm/h]
39 hrs (113%) [6.4%] 1.5, 2017 0, 2009
Cloud Cover Overcast
Events None
Comments early am 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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