Daily Report for 23rd September 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.1 °C (+2.4) 00:18 10.2 °C (-1.1) 14.3 °C (+3.7), 2009 8.1 °C (-2.6), 2014
Maximum Temperature 19.1 °C (+1.5) 15:16 18.2 °C (-1.1) 19.6 °C (+2.0), 2016 11.9 °C (-5.7), 2012
Mean Temperature 15.9 °C (+2.0) 14.1 °C (-1.1) 16.3 °C, 2009 10.1 °C, 2012
Minimum Humidity 51% 15:59 59% 77%, 2013 44%, 2016
Maximum Humidity 82% 04:01 92% 98%, 2012 82%, 2017
Mean Humidity 70% 78% 91%, 2013 63%, 2016
Minimum Pressure 1020 hPa 19:01 1008 hPa 1025 hPa, 2009 997 hPa, 2012
Maximum Pressure 1023 hPa 06:01 1015 hPa 1028 hPa, 2013 1013 hPa, 2010
Mean Pressure 1022 hPa 1012 hPa 1026 hPa, 2009 1008 hPa, 2010
Mean Wind Speed 4.0 mph (+0.1) 4.6 mph (+0.7) 5.5 mph, 2015 1.2 mph, 2013
Maximum Wind Speed 9.4 mph 11:53 12.9 mph 14.3 mph, 2012 5.9 mph, 2013
Maximum Gust 16.1 mph 11:49 20.1 mph 23.0 mph, 2012 7.6 mph, 2013
Mean Wind Direction S
Rainfall 0.0 mm 31.3 mm (72%) 21.8 mm, 2012
Maximum Hourly Rain n/a 6.4, 2012
Maximum 10-min Rain n/a 2, 2012
Maximum Rain Rate n/a 30, 2012
Minimum Dew Point 6.6 °C 21:00 7.8 °C 12.1 °C, 2013 3.7 °C, 2012
Maximum Dew Point 12.4 °C 10:37 12.6 °C 15.9 °C, 2013 9.9 °C, 2016
Mean Dew Point 10.2 °C 10.1 °C 14.2 °C, 2013 7.4 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.1 °C 00:18 10.5 °C 14.7 °C, 2010 8.1 °C, 2014
Day Maximum (09-21) 19.1 °C 15:16 18.2 °C 19.6 °C, 2016 11.8 °C, 2012
Max 10m Temp Rise 0.5 °C 11:04 0.6 °C 0.8 °C, 2011 0.3 °C, 2012
Max 1hr Temp Rise 1.5 °C 10:07 2.1 °C 3.8 °C, 2016 1.1 °C, 2013
Max 1hr Hum Rise 11% 23:18 11% 11%, 2017 5%, 2011
Max 10m Temp Fall 0.3 °C 18:11 0.6 °C 0.5 °C, 2010 0.2 °C, 2015
Max 1hr Temp Fall 1.3 °C 19:20 1.8 °C 2.3 °C, 2016 0.7 °C, 2015
Max 1hr Hum Fall 10% 11:35 11% 15%, 2015 2%, 2012
Max 10m Wind Speed 7.3 mph 12:38 9.5 mph 11.0 mph, 2012 4.1 mph, 2013
Minimum Feels-like 14.4 °C 00:18 10.1 °C 16.1 °C, 2009 6.0 °C, 2012
Maximum Feels-like 20.8 °C 13:05 20.1 °C 23.0 °C, 2013 14.0 °C, 2012
Mean Feels-like 17.2 °C 15.4 °C 19.3 °C, 2013 10.4 °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 6.0 °C (-1.0) 7.9 °C (+0.1) 11.1 °C (+4.1), 2016 3.6 °C (-3.4), 2009
Humidity Range 31% 33% 47%, 2014 17%, 2010
Pressure Range 3 hPa 7 hPa 22 hPa, 2012 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [9%]94 hrs (87%) [35%] 10 [91%], 2016 0 [0%], 2009
Wet Hours 038 hrs (119%) [6.8%] 10, 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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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