Daily Report for 15th September 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.1 °C (-0.1) 06:43 11.4 °C (-0.3) 17.0 °C (+5.8), 2016 6.7 °C (-4.5), 2013
Maximum Temperature 20.9 °C (+2.0) 14:57 20.8 °C (+0.8) 28.2 °C (+9.3), 2016 15.2 °C (-3.7), 2013
Mean Temperature 15.9 °C (+1.0) 16.0 °C (+0.2) 22.1 °C, 2016 11.2 °C, 2017
Minimum Humidity 49% 16:18 53% 83%, 2009 45%, 2012
Maximum Humidity 93% 07:18 91% 98%, 2009 84%, 2012
Mean Humidity 74% 74% 91%, 2009 64%, 2012
Minimum Pressure 1022 hPa 00:06 1019 hPa 1022 hPa, 2018 991 hPa, 2015
Maximum Pressure 1025 hPa 09:37 1023 hPa 1025 hPa, 2018 998 hPa, 2015
Mean Pressure 1024 hPa 1021 hPa 1024 hPa, 2018 995 hPa, 2015
Mean Wind Speed 4.3 mph (+0.4) 3.8 mph (-0.1) 7.4 mph, 2010 2.1 mph, 2011
Maximum Wind Speed 10.5 mph 12:14 11.7 mph 19.4 mph, 2009 6.9 mph, 2014
Maximum Gust 15.0 mph 12:36 18.3 mph 27.1 mph, 2010 10.0 mph, 2014
Mean Wind Direction SW
Rainfall 0.0 mm 4.0 mm (14%) 25.5 mm, 2009
Maximum Hourly Rain n/a 7.4, 2009
Maximum 10-min Rain n/a 3.3, 2009
Maximum Rain Rate n/a 33, 2009
Minimum Dew Point 9.5 °C 16:18 8.8 °C 14.0 °C, 2016 5.0 °C, 2011
Maximum Dew Point 12.6 °C 10:44 13.3 °C 18.6 °C, 2016 10.0 °C, 2017
Mean Dew Point 11.0 °C 10.9 °C 16.4 °C, 2016 7.9 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 11.1 °C 06:44 11.5 °C 17.0 °C, 2016 6.7 °C, 2013
Day Maximum (09-21) 20.9 °C 14:57 20.6 °C 28.2 °C, 2016 15.2 °C, 2013
Max 10m Temp Rise 0.6 °C 09:11 0.6 °C 1.0 °C, 2011 0.4 °C, 2015
Max 1hr Temp Rise 2.6 °C 09:34 2.5 °C 4.8 °C, 2011 1.6 °C, 2015
Max 1hr Hum Rise 10% 20:15 9% 15%, 2017 5%, 2015
Max 10m Temp Fall 0.3 °C 13:02 0.4 °C 0.7 °C, 2016 0.2 °C, 2010
Max 1hr Temp Fall 1.2 °C 20:29 1.7 °C 2.7 °C, 2016 0.8 °C, 2010
Max 1hr Hum Fall 10% 11:08 12% 14%, 2013 8%, 2016
Max 10m Wind Speed 8.4 mph 14:18 8.5 mph 12.2 mph, 2013 5.2 mph, 2014
Minimum Feels-like 12.3 °C 06:34 12.1 °C 23.2 °C, 2016 4.7 °C, 2017
Maximum Feels-like 22.8 °C 14:55 23.0 °C 33.8 °C, 2016 16.8 °C, 2017
Mean Feels-like 17.7 °C 17.7 °C 27.0 °C, 2016 11.2 °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 9.8 °C (+2.2) 9.4 °C (+1.1) 12.8 °C (+5.2), 2011 1.9 °C (-5.7), 2009
Humidity Range 44% 38% 47%, 2011 15%, 2009
Pressure Range 3 hPa 4 hPa 17 hPa, 2013 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7.4 [64%]89 hrs (124%) [50%] 10 [87%], 2012 0 [0%], 2009
Wet Hours 08 hrs (39%) [2.2%] 11, 2009 0, 2010
Cloud Cover Partly Cloudy with periods of Mostly Sunny
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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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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