Daily Report for 7th August 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 14.2 °C (+0.6) 23:56 14.5 °C (+0.8) 17.0 °C (+3.4), 2016 11.5 °C (-2.1), 2015
Maximum Temperature 19.0 °C (-3.6) 18:40 22.5 °C (-0.2) 25.5 °C (+2.9), 2014 19.0 °C (-3.6), 2009
Mean Temperature 16.5 °C (-1.5) 18.1 °C (+0.3) 21.0 °C, 2016 15.6 °C, 2011
Minimum Humidity 86% 19:23 60% 86%, 2009 40%, 2016
Maximum Humidity 98% 08:12 94% 98%, 2009 83%, 2011
Mean Humidity 95% 79% 95%, 2009 61%, 2013
Minimum Pressure 1018 hPa 04:19 1014 hPa 1020 hPa, 2016 1001 hPa, 2011
Maximum Pressure 1021 hPa 22:22 1018 hPa 1027 hPa, 2016 1003 hPa, 2011
Mean Pressure 1020 hPa 1016 hPa 1023 hPa, 2016 1002 hPa, 2011
Mean Wind Speed 2.3 mph (-1.7) 3.0 mph (-1.0) 11.9 mph, 2016 1.3 mph, 2015
Maximum Wind Speed 6.4 mph 8.1 mph 25.2 mph, 2016 6.4 mph, 2009
Maximum Gust 8.7 mph 12:46 11.8 mph 37.1 mph, 2016 8.7 mph, 2009
Mean Wind Direction NW
Rainfall 1.7 mm 36.4 mm (304%) 7.6 mm, 2010
Maximum Hourly Rain 1.7 mm 01:01 4.1 mm, 2010
Maximum 10-min Rain 0.8 mm 00:54 2.7 mm, 2010
Maximum Rain Rate 16 mm/h 18:00 65 mm/h, 2010
Minimum Dew Point 13.5 °C 23:22 11.0 °C 13.6 °C, 2010 6.2 °C, 2013
Maximum Dew Point 17.0 °C 18:30 16.4 °C 18.1 °C, 2016 12.5 °C, 2011
Mean Dew Point 15.7 °C 14.0 °C 15.7 °C, 2009 9.5 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 15.0 °C * 14.6 °C 18.0 °C, 2016 11.5 °C, 2015
Day Maximum (09-21) 19.0 °C 22.5 °C 25.5 °C, 2014 19.0 °C, 2009
Max 10m Temp Rise 0.3 °C 14:15 0.5 °C 0.9 °C, 2013 0.3 °C, 2009
Max 1hr Temp Rise 1.0 °C 14:32 1.8 °C 2.8 °C, 2013 1.0 °C, 2009
Max 1hr Hum Rise 4% 20:54 8% 22%, 2011 4%, 2009
Max 10m Temp Fall 0.4 °C 20:46 0.5 °C 0.9 °C, 2010 0.4 °C, 2009
Max 1hr Temp Fall 1.6 °C 21:05 1.7 °C 2.6 °C, 2014 1.5 °C, 2012
Max 1hr Hum Fall 3% 15:04 7% 20%, 2013 3%, 2009
Max 10m Wind Speed 4.3 mph 16:22 5.8 mph 19.2 mph, 2016 4.3 mph, 2009
Minimum Feels-like 17.3 °C 23:53 14.5 °C 19.3 °C, 2010 11.9 °C, 2015
Maximum Feels-like 24.3 °C 18:27 23.4 °C 29.9 °C, 2016 21.5 °C, 2011
Mean Feels-like 21.0 °C 18.7 °C 24.0 °C, 2016 17.1 °C, 2011
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.8 °C (-4.2) 8.0 °C (-1.0) 12.3 °C (+3.3), 2015 4.8 °C (-4.2), 2009
Humidity Range 12% 34% 45%, 2013 12%, 2009
Pressure Range 3 hPa 4 hPa 7 hPa, 2012 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6 [44%]28 hrs (66%) [29%] 8 [58%], 2014 0.2 [1%], 2017
Wet Hours 1
[Mean rain rate: 1.7 mm/h]
9.8 hrs (114%) [5.8%] 2.5, 2010 0, 2013
Cloud Cover not available
Events None
Comments Light-Moderate 00-01 Rain
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

daygraph daygraph 2 daygraph-wdir

Webcam Summary of Cloud Conditions


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