Daily Report for 23rd September 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.7 °C (-2.0) 23:58 12.3 °C (+0.9) 14.3 °C (+3.7), 2009 8.1 °C (-2.6), 2014
Maximum Temperature 11.3 °C (-6.3) 10:34 20.3 °C (+1.1) 19.6 °C (+2.0), 2016 11.3 °C (-6.3), 2018
Mean Temperature 11.1 °C (-4.1) 16.1 °C (+1.0) 16.3 °C, 2009 10.1 °C, 2012
Minimum Humidity 77% 21:12 55% 77%, 2013 44%, 2016
Maximum Humidity 84% 10:34 90% 98%, 2012 82%, 2017
Mean Humidity 84% 75% 91%, 2013 63%, 2016
Minimum Pressure 1020 hPa 10:34 1016 hPa 1025 hPa, 2009 997 hPa, 2012
Maximum Pressure 1031 hPa 23:56 1022 hPa 1031 hPa, 2018 1013 hPa, 2010
Mean Pressure 1021 hPa 1019 hPa 1026 hPa, 2009 1008 hPa, 2010
Mean Wind Speed 6.4 mph (+2.5) 5.1 mph (+1.2) 6.4 mph, 2018 1.2 mph, 2013
Maximum Wind Speed 7.1 mph 00:00 13.8 mph 14.3 mph, 2012 5.9 mph, 2013
Maximum Gust 9.2 mph 00:00 21.4 mph 23.0 mph, 2012 7.6 mph, 2013
Mean Wind Direction WSW
Rainfall 11.0 mm 26.0 mm (59%) 21.8 mm, 2012
Maximum Hourly Rain 11.0 mm 21:10 11.0 mm, 2018
Maximum 10-min Rain 11.0 mm 21:10 11.0 mm, 2018
Maximum Rain Rate 660 mm/h 21:10 660 mm/h, 2018
Minimum Dew Point 6.1 °C 23:58 9.1 °C 12.1 °C, 2013 3.7 °C, 2012
Maximum Dew Point 8.7 °C 10:34 13.6 °C 15.9 °C, 2013 8.7 °C, 2018
Mean Dew Point 8.4 °C 11.3 °C 14.2 °C, 2013 7.4 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 11.3 °C * 04:29 12.5 °C 14.7 °C, 2010 8.1 °C, 2014
Day Maximum (09-21) 11.3 °C 14:59 20.1 °C 19.6 °C, 2016 11.3 °C, 2018
Max 10m Temp Rise 0.1 °C 23:00 0.6 °C 0.8 °C, 2011 0.1 °C, 2018
Max 1hr Temp Rise 0.0 °C 01:01 2.2 °C 3.8 °C, 2016 0.0 °C, 2018
Max 1hr Hum Rise 4% 22:10 9% 11%, 2017 4%, 2018
Max 10m Temp Fall 1.3 °C 21:17 0.5 °C 1.3 °C, 2018 0.2 °C, 2015
Max 1hr Temp Fall 1.7 °C 22:08 1.6 °C 2.3 °C, 2016 0.7 °C, 2015
Max 1hr Hum Fall 7% 21:10 11% 15%, 2015 2%, 2012
Max 10m Wind Speed 7.1 mph 00:10 10.1 mph 11.0 mph, 2012 4.1 mph, 2013
Minimum Feels-like 8.1 °C 23:27 13.4 °C 16.1 °C, 2009 6.0 °C, 2012
Maximum Feels-like 12.0 °C 00:00 22.7 °C 23.0 °C, 2013 12.0 °C, 2018
Mean Feels-like 11.7 °C 18.1 °C 19.3 °C, 2013 10.4 °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 2.6 °C (-4.4) 8.0 °C (+0.2) 11.1 °C (+4.1), 2016 2.6 °C (-4.4), 2018
Humidity Range 7% 34% 47%, 2014 7%, 2018
Pressure Range 11 hPa 6 hPa 22 hPa, 2012 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [36%]121 hrs (113%) [45%] 10 [91%], 2016 0 [0%], 2009
Wet Hours 1
[Mean rain rate: 11 mm/h]
22 hrs (70%) [4%] 10, 2012 0, 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? No
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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