Daily Report for 20th July 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 15.3 °C (+1.6) 23:57 15.9 °C (+2.8) 18.7 °C (+4.9), 2014 11.9 °C (-1.8), 2009
Maximum Temperature 20.4 °C (-2.2) 17:13 24.7 °C (+2.4) 30.1 °C (+7.5), 2016 18.6 °C (-4.0), 2012
Mean Temperature 18.2 °C (-0.3) 20.2 °C (+2.6) 24.3 °C, 2016 14.9 °C, 2012
Minimum Humidity 41% 17:41 45% 60%, 2012 31%, 2016
Maximum Humidity 85% 06:23 78% 93%, 2009 56%, 2010
Mean Humidity 68% 61% 78%, 2011 43%, 2010
Minimum Pressure 1006 hPa 06:07 1013 hPa 1021 hPa, 2013 1006 hPa, 2017
Maximum Pressure 1011 hPa 18:42 1020 hPa 1025 hPa, 2013 1010 hPa, 2011
Mean Pressure 1009 hPa 1017 hPa 1023 hPa, 2013 1009 hPa, 2017
Mean Wind Speed 5.7 mph (+1.4) 3.6 mph (-0.7) 8.3 mph, 2016 2.4 mph, 2011
Maximum Wind Speed 14.4 mph 11:54 11.2 mph 20.8 mph, 2016 7.8 mph, 2014
Maximum Gust 24.1 mph 13:06 17.1 mph 30.6 mph, 2016 10.7 mph, 2011
Mean Wind Direction WSW
Rainfall 0.5 mm 45.9 mm (169%) 5.7 mm, 2011
Maximum Hourly Rain 0.3 mm 03:03 4.6 mm, 2011
Maximum 10-min Rain 0.3 mm 03:03 3.0 mm, 2011
Maximum Rain Rate n/a 20, 2011
Minimum Dew Point 6.1 °C 19:15 9.1 °C 14.9 °C, 2014 1.0 °C, 2015
Maximum Dew Point 16.3 °C 09:17 14.7 °C 18.3 °C, 2016 12.3 °C, 2011
Mean Dew Point 11.9 °C 12.0 °C 16.4 °C, 2014 9.8 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 17.7 °C * 05:23 16.0 °C 20.9 °C, 2016 11.9 °C, 2009
Day Maximum (09-21) 20.4 °C 17:13 24.7 °C 30.1 °C, 2016 18.6 °C, 2012
Max 10m Temp Rise 0.7 °C 14:00 0.6 °C 0.9 °C, 2013 0.4 °C, 2009
Max 1hr Temp Rise 2.4 °C 14:41 2.2 °C 3.0 °C, 2016 1.3 °C, 2011
Max 1hr Hum Rise 10% 21:06 8% 13%, 2015 6%, 2009
Max 10m Temp Fall 0.6 °C 11:12 0.5 °C 0.9 °C, 2012 0.3 °C, 2013
Max 1hr Temp Fall 2.3 °C 11:26 1.9 °C 3.4 °C, 2016 1.1 °C, 2013
Max 1hr Hum Fall 17% 14:58 10% 17%, 2017 7%, 2010
Max 10m Wind Speed 10.7 mph 16:43 8.2 mph 16.7 mph, 2016 3.7 mph, 2009
Minimum Feels-like 15.7 °C 23:55 17.5 °C 23.5 °C, 2014 11.9 °C, 2015
Maximum Feels-like 24.5 °C 09:29 27.5 °C 34.8 °C, 2016 20.5 °C, 2011
Mean Feels-like 20.6 °C 22.6 °C 28.4 °C, 2016 16.7 °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 5.1 °C (-3.8) 8.9 °C (-0.4) 11.4 °C (+2.5), 2016 5.1 °C (-3.8), 2017
Humidity Range 44% 34% 44%, 2017 21%, 2010
Pressure Range 5 hPa 6 hPa 11 hPa, 2010 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3.4 [23%]127 hrs (105%) [43%] 11 [75%], 2016 0 [0%], 2015
Wet Hours 1
[Mean rain rate: 0.5 mm/h]
17 hrs (78%) [3.5%] 4, 2011 0, 2009
Cloud Cover am: Mostly Cloudy
pm: Partly Cloudy transitioned to Mostly Cloudy
Events None
Comments Showers
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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