Daily Report for 9th August 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.1 °C (-0.5) 23:53 14.0 °C (+0.3) 16.1 °C (+2.6), 2009 11.5 °C (-2.1), 2016
Maximum Temperature 15.4 °C (-7.2) 13:51 20.1 °C (-2.5) 26.1 °C (+3.5), 2015 15.4 °C (-7.2), 2017
Mean Temperature 13.9 °C (-3.8) 17.0 °C (-1.1) 20.7 °C, 2015 13.9 °C, 2017
Minimum Humidity 78% 00:40 56% 78%, 2017 30%, 2015
Maximum Humidity 86% 17:07 83% 94%, 2014 71%, 2011
Mean Humidity 84% 70% 84%, 2017 52%, 2016
Minimum Pressure 1010 hPa 00:18 1012 hPa 1024 hPa, 2012 1003 hPa, 2014
Maximum Pressure 1023 hPa 23:46 1018 hPa 1027 hPa, 2012 1009 hPa, 2014
Mean Pressure 1017 hPa 1015 hPa 1026 hPa, 2012 1007 hPa, 2014
Mean Wind Speed 4.1 mph (+0.1) 4.8 mph (+0.8) 6.7 mph, 2016 1.8 mph, 2012
Maximum Wind Speed 11.3 mph 19:19 12.9 mph 17.1 mph, 2016 7.4 mph, 2012
Maximum Gust 22.0 mph 15:46 20.5 mph 24.2 mph, 2016 8.7 mph, 2012
Mean Wind Direction N
Rainfall 39.1 mm 50.8 mm (330%) 39.1 mm, 2017
Maximum Hourly Rain 11.2 mm 11:11 11.2 mm, 2017
Maximum 10-min Rain 4.3 mm 10:37 4.3 mm, 2017
Maximum Rain Rate 48 mm/h 10:33 48 mm/h, 2017
Minimum Dew Point 9.6 °C 01:12 8.9 °C 9.9 °C, 2009 3.3 °C, 2016
Maximum Dew Point 13.1 °C 13:51 13.6 °C 16.7 °C, 2013 8.3 °C, 2016
Mean Dew Point 11.2 °C 11.2 °C 12.3 °C, 2012 5.5 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 13.4 °C * 01:12 14.2 °C 16.1 °C, 2009 11.5 °C, 2016
Day Maximum (09-21) 15.4 °C 13:51 20.1 °C 26.1 °C, 2015 15.4 °C, 2017
Max 10m Temp Rise 0.2 °C 11:55 0.5 °C 1.1 °C, 2012 0.2 °C, 2017
Max 1hr Temp Rise 0.7 °C 13:33 1.7 °C 5.0 °C, 2012 0.7 °C, 2017
Max 1hr Hum Rise 2% 05:09 8% 10%, 2013 2%, 2017
Max 10m Temp Fall 0.2 °C 14:38 0.6 °C 0.7 °C, 2013 0.2 °C, 2017
Max 1hr Temp Fall 0.8 °C 16:03 1.6 °C 2.2 °C, 2013 0.8 °C, 2017
Max 1hr Hum Fall 1% 14:07 8% 18%, 2014 1%, 2017
Max 10m Wind Speed 8.4 mph 15:28 9.8 mph 13.5 mph, 2016 4.8 mph, 2009
Minimum Feels-like 14.5 °C 01:09 15.3 °C 18.6 °C, 2009 11.5 °C, 2016
Maximum Feels-like 18.3 °C 13:46 22.6 °C 27.8 °C, 2012 18.3 °C, 2017
Mean Feels-like 15.7 °C 18.9 °C 22.3 °C, 2012 15.7 °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 2.3 °C (-6.7) 6.1 °C (-2.8) 13.5 °C (+4.5), 2012 2.3 °C (-6.7), 2017
Humidity Range 8% 26% 57%, 2012 8%, 2017
Pressure Range 13 hPa 6 hPa 13 hPa, 2017 3 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]32 hrs (58%) [26%] 12 [88%], 2015 0 [0%], 2017
Wet Hours 16
[Mean rain rate: 2.4 mm/h]
23 hrs (208%) [11%] 16, 2017 0, 2009
Cloud Cover Overcast
Events None
Comments 07-23 Rain
Extra Comments
Issues Rn data from N16
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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