Daily Report for 29th September 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.8 °C (+2.6) 23:55 10.9 °C (-0.3) 14.0 °C (+3.8), 2011 8.4 °C (-1.8), 2012
Maximum Temperature 18.5 °C (+1.6) 11:54 18.5 °C (-0.3) 26.9 °C (+10.0), 2011 15.2 °C (-1.7), 2012
Mean Temperature 16.2 °C (+2.1) 14.5 °C (-0.3) 19.6 °C, 2011 11.5 °C, 2012
Minimum Humidity 78% 12:05 60% 83%, 2014 42%, 2011
Maximum Humidity 96% 05:37 92% 96%, 2010 84%, 2016
Mean Humidity 88% 79% 89%, 2014 70%, 2016
Minimum Pressure 1014 hPa 11:16 1010 hPa 1032 hPa, 2015 1006 hPa, 2013
Maximum Pressure 1018 hPa 00:45 1016 hPa 1036 hPa, 2015 1008 hPa, 2013
Mean Pressure 1016 hPa 1013 hPa 1034 hPa, 2015 1007 hPa, 2013
Mean Wind Speed 4.2 mph (+0.3) 4.4 mph (+0.5) 11.4 mph, 2016 1.8 mph, 2011
Maximum Wind Speed 13.4 mph 13:53 12.4 mph 22.7 mph, 2016 8.5 mph, 2009
Maximum Gust 19.6 mph 11:46 19.2 mph 40.3 mph, 2016 12.5 mph, 2011
Mean Wind Direction SW
Rainfall 5.6 mm 57.5 mm (104%) 11.7 mm, 2010
Maximum Hourly Rain 2.0 mm 04:51 3.5 mm, 2010
Maximum 10-min Rain 1.6 mm 14:30 1.6 mm, 2017
Maximum Rain Rate 24 mm/h 14:25 24 mm/h, 2017
Minimum Dew Point 10.9 °C 23:55 8.5 °C 11.5 °C, 2014 2.7 °C, 2012
Maximum Dew Point 16.5 °C 08:48 13.1 °C 17.4 °C, 2011 9.5 °C, 2012
Mean Dew Point 14.1 °C 10.8 °C 14.1 °C, 2017 6.0 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 14.1 °C * 22:48 11.1 °C 16.8 °C, 2016 8.4 °C, 2012
Day Maximum (09-21) 18.5 °C 11:54 18.5 °C 26.9 °C, 2011 15.2 °C, 2012
Max 10m Temp Rise 0.3 °C 10:57 0.6 °C 0.8 °C, 2011 0.3 °C, 2010
Max 1hr Temp Rise 1.0 °C 11:25 2.0 °C 3.7 °C, 2011 1.0 °C, 2010
Max 1hr Hum Rise 7% 15:00 11% 11%, 2012 3%, 2013
Max 10m Temp Fall 1.0 °C 14:36 0.6 °C 1.0 °C, 2017 0.2 °C, 2014
Max 1hr Temp Fall 2.3 °C 15:13 1.7 °C 2.4 °C, 2012 0.9 °C, 2014
Max 1hr Hum Fall 10% 12:05 11% 18%, 2012 8%, 2014
Max 10m Wind Speed 10.0 mph 12:08 9.1 mph 17.4 mph, 2016 5.3 mph, 2009
Minimum Feels-like 14.5 °C 23:52 11.2 °C 16.1 °C, 2011 6.7 °C, 2012
Maximum Feels-like 22.8 °C 11:25 20.7 °C 30.0 °C, 2011 15.2 °C, 2012
Mean Feels-like 19.7 °C 16.2 °C 22.8 °C, 2011 11.4 °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 5.7 °C (-1.0) 7.6 °C (+0.0) 12.9 °C (+6.2), 2011 4.1 °C (-2.6), 2013
Humidity Range 18% 32% 54%, 2011 13%, 2014
Pressure Range 4 hPa 6 hPa 8 hPa, 2012 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.3 [3%]112 hrs (84%) [34%] 10.61 [100%], 2011 0.1 [1%], 2010
Wet Hours 4
[Mean rain rate: 1.4 mm/h]
53 hrs (132%) [7.5%] 10, 2010 0, 2009
Cloud Cover Mostly Cloudy or Overcast
Events None
Comments am Rain, 1430 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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