Daily Report for 4th September 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.1 °C (+1.0) 02:07 11.3 °C (-0.8) 15.9 °C (+3.8), 2016 10.1 °C (-2.0), 2010
Maximum Temperature 19.8 °C (-1.0) 15:20 22.6 °C (+1.7) 26.8 °C (+6.0), 2013 15.3 °C (-5.5), 2015
Mean Temperature 15.8 °C (+0.0) 16.9 °C (+0.4) 19.7 °C, 2013 12.8 °C, 2015
Minimum Humidity 62% 14:58 46% 80%, 2017 42%, 2013
Maximum Humidity 92% 06:53 94% 97%, 2017 84%, 2015
Mean Humidity 79% 71% 90%, 2017 67%, 2009
Minimum Pressure 1021 hPa 04:44 1022 hPa 1022 hPa, 2012 1003 hPa, 2009
Maximum Pressure 1023 hPa 23:46 1025 hPa 1025 hPa, 2012 1007 hPa, 2011
Mean Pressure 1022 hPa 1023 hPa 1024 hPa, 2012 1006 hPa, 2011
Mean Wind Speed 3.0 mph (-0.9) 2.1 mph (-1.8) 9.0 mph, 2016 2.3 mph, 2013
Maximum Wind Speed 9.9 mph 10:54 8.9 mph 20.2 mph, 2016 7.8 mph, 2014
Maximum Gust 15.0 mph 13:35 13.8 mph 32.3 mph, 2016 10.7 mph, 2014
Mean Wind Direction NNE
Rainfall 0.0 mm 0.0 mm (0%) 8.0 mm, 2017
Maximum Hourly Rain n/a 3.3, 2011
Maximum 10-min Rain n/a 1.4, 2017
Maximum Rain Rate n/a 12, 2017
Minimum Dew Point 11.0 °C 06:06 8.8 °C 13.2 °C, 2016 4.9 °C, 2009
Maximum Dew Point 13.2 °C 13:20 13.5 °C 18.6 °C, 2017 9.3 °C, 2009
Mean Dew Point 12.1 °C 11.0 °C 15.7 °C, 2017 7.4 °C, 2009
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.1 °C 04:26 11.3 °C 15.9 °C, 2016 10.1 °C, 2010
Day Maximum (09-21) 19.8 °C 15:20 22.6 °C 26.8 °C, 2013 15.3 °C, 2015
Max 10m Temp Rise 0.7 °C 13:00 0.7 °C 0.9 °C, 2010 0.4 °C, 2016
Max 1hr Temp Rise 3.0 °C 13:15 3.4 °C 3.7 °C, 2013 1.0 °C, 2016
Max 1hr Hum Rise 7% 06:49 11% 9%, 2013 3%, 2017
Max 10m Temp Fall 0.3 °C 18:56 0.5 °C 0.6 °C, 2012 0.2 °C, 2014
Max 1hr Temp Fall 1.1 °C 20:41 2.0 °C 2.3 °C, 2012 0.7 °C, 2014
Max 1hr Hum Fall 11% 13:10 18% 17%, 2016 7%, 2015
Max 10m Wind Speed 6.5 mph 15:35 6.2 mph 16.5 mph, 2016 5.7 mph, 2015
Minimum Feels-like 15.0 °C 02:04 12.5 °C 20.1 °C, 2016 10.3 °C, 2015
Maximum Feels-like 22.6 °C 15:15 24.6 °C 30.5 °C, 2013 16.4 °C, 2015
Mean Feels-like 18.2 °C 18.7 °C 23.4 °C, 2013 13.2 °C, 2015
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.7 °C (-2.0) 11.3 °C (+2.5) 13.3 °C (+4.6), 2013 3.7 °C (-5.0), 2016
Humidity Range 30% 48% 54%, 2013 17%, 2017
Pressure Range 2 hPa 4 hPa 13 hPa, 2009 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [8%]35 hrs (179%) [72%] 12 [99%], 2013 0.1 [1%], 2016
Wet Hours 00 hrs (0%) [0%] 11, 2017 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 of the longest continuous period at that extreme value.
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 (entered with a delay of 1-10 days); their reliablity is questionable and they are provided for interest only.
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