Daily Report for 31st August 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.8 °C (-3.6) 06:47 13.6 °C (+0.4) 16.1 °C (+3.7), 2009 6.7 °C (-5.7), 2012
Maximum Temperature 20.1 °C (-1.1) 13:14 21.9 °C (-0.3) 25.4 °C (+4.2), 2009 15.7 °C (-5.5), 2015
Mean Temperature 15.0 °C (-2.3) 17.6 °C (+0.1) 19.4 °C, 2009 13.0 °C, 2012
Minimum Humidity 49% 18:49 51% 89%, 2015 34%, 2009
Maximum Humidity 87% 07:54 82% 96%, 2009 80%, 2012
Mean Humidity 69% 67% 92%, 2015 57%, 2013
Minimum Pressure 1017 hPa 00:04 1014 hPa 1026 hPa, 2012 1003 hPa, 2009
Maximum Pressure 1021 hPa 23:12 1019 hPa 1030 hPa, 2012 1016 hPa, 2009
Mean Pressure 1018 hPa 1017 hPa 1029 hPa, 2012 1010 hPa, 2009
Mean Wind Speed 1.5 mph (-2.5) 3.5 mph (-0.5) 4.7 mph, 2009 1.5 mph, 2017
Maximum Wind Speed 8.2 mph 15:09 10.7 mph 16.8 mph, 2012 5.8 mph, 2011
Maximum Gust 11.5 mph 15:09 16.3 mph 26.3 mph, 2012 7.8 mph, 2011
Mean Wind Direction WSW
Rainfall trace 86.4 mm (163%) 17.5, 2015
Maximum Hourly Rain n/a 9.3, 2015
Maximum 10-min Rain n/a 3.9, 2015
Maximum Rain Rate n/a 54, 2015
Minimum Dew Point 6.4 °C 06:47 8.5 °C 12.8 °C, 2015 2.7 °C, 2012
Maximum Dew Point 12.2 °C 09:51 13.5 °C 17.9 °C, 2009 7.8 °C, 2012
Mean Dew Point 8.9 °C 11.0 °C 13.5 °C, 2009 4.6 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 8.8 °C 06:47 13.7 °C 16.1 °C, 2009 6.7 °C, 2012
Day Maximum (09-21) 20.1 °C 13:14 21.8 °C 25.4 °C, 2009 15.4 °C, 2015
Max 10m Temp Rise 0.7 °C 07:51 0.6 °C 0.8 °C, 2010 0.2 °C, 2015
Max 1hr Temp Rise 2.7 °C 08:41 2.1 °C 3.9 °C, 2010 0.8 °C, 2015
Max 1hr Hum Rise 8% 14:34 8% 10%, 2014 2%, 2015
Max 10m Temp Fall 0.8 °C 14:00 0.6 °C 0.8 °C, 2017 0.2 °C, 2015
Max 1hr Temp Fall 2.0 °C 14:23 1.9 °C 3.1 °C, 2014 0.6 °C, 2015
Max 1hr Hum Fall 11% 10:40 9% 15%, 2009 1%, 2015
Max 10m Wind Speed 6.3 mph 15:16 7.9 mph 11.5 mph, 2016 3.7 mph, 2011
Minimum Feels-like 8.6 °C 06:02 14.7 °C 17.8 °C, 2009 4.2 °C, 2012
Maximum Feels-like 21.8 °C 12:54 24.2 °C 28.4 °C, 2009 18.0 °C, 2012
Mean Feels-like 15.8 °C 19.5 °C 22.7 °C, 2009 12.6 °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 11.3 °C (+2.5) 8.3 °C (-0.7) 11.3 °C (+2.5), 2012 1.6 °C (-7.2), 2015
Humidity Range 38% 31% 62%, 2009 4%, 2015
Pressure Range 4 hPa 5 hPa 13 hPa, 2009 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10 [81%]178 hrs (98%) [43%] 11 [89%], 2010 0 [0%], 2015
Wet Hours 0.247 hrs (123%) [6.3%] 12, 2015 0, 2009
Cloud Cover am: Sunny transitioned to Partly Cloudy
pm: Mostly Sunny
Events None
Comments -
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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