Daily Report for 9th September 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.4 °C (-1.3) 05:23 11.5 °C (-0.4) 15.7 °C (+4.0), 2011 9.3 °C (-2.4), 2013
Maximum Temperature 18.1 °C (-1.9) 14:39 19.8 °C (-0.7) 27.6 °C (+7.6), 2012 12.9 °C (-7.1), 2013
Mean Temperature 13.6 °C (-1.6) 15.7 °C (-0.6) 18.5 °C, 2011 11.1 °C, 2013
Minimum Humidity 56% 14:46 58% 84%, 2013 30%, 2012
Maximum Humidity 92% 05:32 90% 96%, 2011 82%, 2009
Mean Humidity 80% 76% 92%, 2013 60%, 2012
Minimum Pressure 996 hPa 03:45 1009 hPa 1021 hPa, 2009 996 hPa, 2017
Maximum Pressure 1002 hPa 23:45 1016 hPa 1033 hPa, 2009 1002 hPa, 2017
Mean Pressure 998 hPa 1013 hPa 1027 hPa, 2009 998 hPa, 2017
Mean Wind Speed 4.8 mph (+0.9) 4.1 mph (+0.2) 11.4 mph, 2016 1.7 mph, 2014
Maximum Wind Speed 12.2 mph 14:13 12.2 mph 21.9 mph, 2016 7.8 mph, 2014
Maximum Gust 18.4 mph 10:59 18.4 mph 33.9 mph, 2016 10.7 mph, 2014
Mean Wind Direction W
Rainfall 0.4 mm 14.9 mm (87%) 6.8 mm, 2013
Maximum Hourly Rain 0.4 mm 15:41 3.6 mm, 2011
Maximum 10-min Rain 0.4 mm 15:41 1.9 mm, 2011
Maximum Rain Rate 12 mm/h 15:41 20 mm/h, 2011
Minimum Dew Point 8.9 °C 04:50 8.7 °C 14.6 °C, 2011 5.4 °C, 2009
Maximum Dew Point 11.9 °C 15:57 13.7 °C 17.7 °C, 2011 11.9 °C, 2017
Mean Dew Point 9.9 °C 11.1 °C 15.9 °C, 2011 9.1 °C, 2009
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.4 °C 05:23 11.8 °C 15.7 °C, 2011 9.3 °C, 2013
Day Maximum (09-21) 18.1 °C 14:39 19.8 °C 27.6 °C, 2012 12.9 °C, 2013
Max 10m Temp Rise 0.6 °C 09:14 0.6 °C 0.9 °C, 2012 0.3 °C, 2011
Max 1hr Temp Rise 2.5 °C 09:34 2.0 °C 4.7 °C, 2012 1.0 °C, 2013
Max 1hr Hum Rise 19% 15:57 10% 19%, 2017 3%, 2011
Max 10m Temp Fall 0.9 °C 15:45 0.7 °C 0.9 °C, 2017 0.2 °C, 2013
Max 1hr Temp Fall 2.0 °C 16:04 1.7 °C 2.8 °C, 2012 0.9 °C, 2013
Max 1hr Hum Fall 11% 09:42 9% 26%, 2015 5%, 2013
Max 10m Wind Speed 9.5 mph 14:44 9.0 mph 17.2 mph, 2016 5.6 mph, 2014
Minimum Feels-like 11.2 °C 04:55 12.4 °C 19.4 °C, 2011 7.8 °C, 2013
Maximum Feels-like 19.4 °C 14:32 22.4 °C 28.4 °C, 2012 15.2 °C, 2013
Mean Feels-like 14.8 °C 17.6 °C 23.1 °C, 2011 12.3 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.7 °C (-0.6) 8.3 °C (-0.2) 17.5 °C (+9.2), 2012 3.6 °C (-4.7), 2013
Humidity Range 36% 32% 54%, 2012 11%, 2013
Pressure Range 6 hPa 7 hPa 12 hPa, 2009 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7 [59%]37 hrs (84%) [34%] 10 [84%], 2012 0.3 [3%], 2013
Wet Hours 0.5
[Mean rain rate: 0.8 mm/h]
22 hrs (175%) [10%] 5, 2013 0, 2009
Cloud Cover am: Sunny transitioned to Mostly Sunny
pm: Partly Cloudy
Events None
Comments 1530 Shower
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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