Daily Report for 8th September 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.4 °C (+0.6) 23:37 11.6 °C (-0.3) 16.9 °C (+5.1), 2009 8.2 °C (-3.6), 2013
Maximum Temperature 17.9 °C (-2.3) 17:34 20.0 °C (-0.5) 27.1 °C (+6.9), 2009 16.0 °C (-4.2), 2015
Mean Temperature 15.3 °C (-0.8) 16.0 °C (-0.4) 20.7 °C, 2009 12.6 °C, 2013
Minimum Humidity 70% 18:13 58% 70%, 2011 24%, 2012
Maximum Humidity 93% 08:26 90% 96%, 2014 82%, 2016
Mean Humidity 84% 75% 87%, 2010 54%, 2012
Minimum Pressure 996 hPa 21:45 1011 hPa 1025 hPa, 2015 996 hPa, 2017
Maximum Pressure 1007 hPa 00:30 1018 hPa 1031 hPa, 2015 1007 hPa, 2017
Mean Pressure 1000 hPa 1015 hPa 1028 hPa, 2015 1000 hPa, 2017
Mean Wind Speed 5.8 mph (+1.9) 4.0 mph (+0.1) 6.6 mph, 2016 1.0 mph, 2014
Maximum Wind Speed 16.2 mph 00:07 12.2 mph 22.3 mph, 2016 5.9 mph, 2014
Maximum Gust 23.0 mph 00:03 18.4 mph 33.9 mph, 2016 7.6 mph, 2014
Mean Wind Direction WSW
Rainfall 5.2 mm 14.5 mm (95%) 5.2 mm, 2010
Maximum Hourly Rain 2.0 mm 12:50 4.9 mm, 2010
Maximum 10-min Rain 0.6 mm 12:37 4.1 mm, 2010
Maximum Rain Rate 12 mm/h 07:57 50 mm/h, 2010
Minimum Dew Point 10.3 °C 20:42 8.7 °C 11.0 °C, 2010 4.0 °C, 2012
Maximum Dew Point 14.6 °C 14:09 13.9 °C 17.8 °C, 2009 11.1 °C, 2015
Mean Dew Point 12.6 °C 11.2 °C 15.2 °C, 2009 7.7 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 14.4 °C * 08:13 12.0 °C 17.8 °C, 2016 8.2 °C, 2013
Day Maximum (09-21) 17.9 °C 17:34 20.0 °C 27.1 °C, 2009 16.0 °C, 2015
Max 10m Temp Rise 0.3 °C 15:56 0.6 °C 1.2 °C, 2012 0.3 °C, 2011
Max 1hr Temp Rise 1.0 °C 16:08 1.9 °C 4.9 °C, 2012 1.0 °C, 2017
Max 1hr Hum Rise 8% 19:17 9% 16%, 2013 5%, 2015
Max 10m Temp Fall 0.8 °C 18:24 0.7 °C 1.4 °C, 2013 0.3 °C, 2015
Max 1hr Temp Fall 2.9 °C 19:06 1.7 °C 4.0 °C, 2012 1.2 °C, 2015
Max 1hr Hum Fall 10% 16:06 9% 18%, 2013 5%, 2015
Max 10m Wind Speed 11.8 mph 00:16 9.0 mph 17.7 mph, 2016 4.1 mph, 2014
Minimum Feels-like 14.2 °C 23:35 12.6 °C 21.4 °C, 2009 7.5 °C, 2013
Maximum Feels-like 20.8 °C 17:22 22.8 °C 30.8 °C, 2009 17.1 °C, 2015
Mean Feels-like 17.9 °C 18.0 °C 24.9 °C, 2009 12.9 °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 5.5 °C (-3.0) 8.4 °C (-0.2) 17.2 °C (+8.7), 2012 5.5 °C (-3.0), 2017
Humidity Range 23% 32% 60%, 2012 19%, 2011
Pressure Range 11 hPa 7 hPa 11 hPa, 2017 2 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.2 [10%]30 hrs (77%) [31%] 11.7 [98%], 2014 0.3 [3%], 2010
Wet Hours 6
[Mean rain rate: 0.9 mm/h]
21 hrs (192%) [11%] 6, 2017 0, 2009
Cloud Cover am: Overcast
pm: Overcast transitioned to Partly Cloudy
Events None
Comments 06-14 Rain spells
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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