Daily Report for 14th September 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.1 °C (-0.2) 01:43 11.4 °C (-0.3) 19.0 °C (+7.7), 2016 8.0 °C (-3.3), 2013
Maximum Temperature 17.9 °C (-1.2) 14:53 20.7 °C (+0.7) 27.0 °C (+7.9), 2016 13.6 °C (-5.5), 2013
Mean Temperature 14.3 °C (-0.7) 16.0 °C (+0.2) 23.1 °C, 2016 11.1 °C, 2013
Minimum Humidity 59% 14:25 53% 81%, 2010 43%, 2011
Maximum Humidity 83% 07:30 91% 98%, 2013 80%, 2016
Mean Humidity 74% 74% 92%, 2013 64%, 2011
Minimum Pressure 1020 hPa 16:52 1019 hPa 1023 hPa, 2009 991 hPa, 2015
Maximum Pressure 1023 hPa 00:12 1023 hPa 1028 hPa, 2009 1000 hPa, 2015
Mean Pressure 1021 hPa 1021 hPa 1026 hPa, 2009 994 hPa, 2015
Mean Wind Speed 4.9 mph (+1.0) 3.8 mph (-0.1) 7.7 mph, 2010 3.6 mph, 2013
Maximum Wind Speed 14.3 mph 10:50 11.8 mph 19.4 mph, 2015 10.5 mph, 2014
Maximum Gust 21.9 mph 14:04 18.5 mph 25.9 mph, 2015 15.2 mph, 2014
Mean Wind Direction WSW
Rainfall 0.0 mm 4.0 mm (15%) 6.7 mm, 2015
Maximum Hourly Rain n/a 3.7, 2015
Maximum 10-min Rain n/a 1.6, 2015
Maximum Rain Rate n/a 30, 2015
Minimum Dew Point 7.7 °C 01:23 8.8 °C 12.5 °C, 2016 5.6 °C, 2011
Maximum Dew Point 11.1 °C 15:24 13.3 °C 17.0 °C, 2016 9.8 °C, 2011
Mean Dew Point 9.6 °C 10.9 °C 16.0 °C, 2016 7.3 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 11.1 °C 02:22 11.6 °C 19.0 °C, 2016 8.0 °C, 2017
Day Maximum (09-21) 17.9 °C 14:53 20.6 °C 27.0 °C, 2016 13.6 °C, 2013
Max 10m Temp Rise 0.6 °C 08:55 0.6 °C 0.7 °C, 2011 0.2 °C, 2010
Max 1hr Temp Rise 1.9 °C 09:09 2.5 °C 3.0 °C, 2011 0.7 °C, 2010
Max 1hr Hum Rise 7% 15:24 9% 15%, 2016 3%, 2010
Max 10m Temp Fall 0.3 °C 17:39 0.4 °C 1.0 °C, 2016 0.3 °C, 2018
Max 1hr Temp Fall 0.9 °C 20:38 1.7 °C 2.8 °C, 2015 0.9 °C, 2018
Max 1hr Hum Fall 9% 11:22 12% 19%, 2012 2%, 2010
Max 10m Wind Speed 10.9 mph 15:46 8.5 mph 14.0 mph, 2015 7.7 mph, 2014
Minimum Feels-like 11.4 °C 01:32 12.1 °C 24.1 °C, 2016 4.8 °C, 2017
Maximum Feels-like 19.4 °C 14:50 23.0 °C 33.1 °C, 2016 16.1 °C, 2013
Mean Feels-like 15.4 °C 17.7 °C 27.7 °C, 2016 11.5 °C, 2017
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.8 °C (-0.9) 9.3 °C (+1.0) 8.8 °C (+1.1), 2017 5.6 °C (-2.1), 2013
Humidity Range 24% 37% 41%, 2011 12%, 2010
Pressure Range 3 hPa 4 hPa 13 hPa, 2017 3 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2 [17%]82 hrs (122%) [49%] 11.4 [99%], 2016 0 [0%], 2010
Wet Hours 08 hrs (42%) [2.4%] 6, 2013 0, 2009
Cloud Cover Mostly Cloudy with periods of Partly Cloudy
Events None
Comments -
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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