Daily Report for 17th August 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 16.2 °C (+2.9) 02:35 13.4 °C (-0.1) 18.1 °C (+4.8), 2012 11.9 °C (-1.4), 2015
Maximum Temperature 24.1 °C (+1.8) 14:26 21.5 °C (-1.0) 27.6 °C (+5.3), 2012 20.0 °C (-2.3), 2013
Mean Temperature 19.6 °C (+2.4) 17.4 °C (-0.6) 22.2 °C, 2012 15.9 °C, 2011
Minimum Humidity 47% 18:02 50% 60%, 2013 33%, 2012
Maximum Humidity 85% 07:45 81% 93%, 2013 76%, 2012
Mean Humidity 69% 66% 80%, 2013 58%, 2012
Minimum Pressure 1010 hPa 00:05 1013 hPa 1016 hPa, 2011 1007 hPa, 2010
Maximum Pressure 1015 hPa 00:19 1019 hPa 1018 hPa, 2009 1015 hPa, 2010
Mean Pressure 1012 hPa 1016 hPa 1017 hPa, 2011 1010 hPa, 2014
Mean Wind Speed 6.2 mph (+2.2) 4.2 mph (+0.2) 7.6 mph, 2014 1.9 mph, 2015
Maximum Wind Speed 14.3 mph 12:35 12.2 mph 17.6 mph, 2014 9.0 mph, 2015
Maximum Gust 22.0 mph 12:51 18.6 mph 26.8 mph, 2013 12.1 mph, 2011
Mean Wind Direction SW
Rainfall 5.3 mm 56.1 mm (193%) 6.0 mm, 2010
Maximum Hourly Rain 4.1 mm 02:03 5.5 mm, 2010
Maximum 10-min Rain 1.5 mm 01:25 3.3 mm, 2010
Maximum Rain Rate 18 mm/h 02:01 50 mm/h, 2010
Minimum Dew Point 10.0 °C 00:10 7.8 °C 11.5 °C, 2013 4.1 °C, 2014
Maximum Dew Point 16.7 °C 11:29 13.2 °C 17.5 °C, 2012 11.3 °C, 2015
Mean Dew Point 13.5 °C 10.6 °C 13.6 °C, 2013 8.0 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 16.2 °C 02:35 13.6 °C 18.1 °C, 2012 11.9 °C, 2015
Day Maximum (09-21) 24.1 °C 14:26 21.5 °C 27.6 °C, 2012 20.0 °C, 2013
Max 10m Temp Rise 0.5 °C 12:33 0.6 °C 1.0 °C, 2009 0.3 °C, 2010
Max 1hr Temp Rise 1.8 °C 13:21 2.1 °C 2.8 °C, 2014 0.9 °C, 2010
Max 1hr Hum Rise 13% 02:11 7% 13%, 2017 3%, 2015
Max 10m Temp Fall 0.4 °C 18:50 0.5 °C 1.4 °C, 2014 0.3 °C, 2010
Max 1hr Temp Fall 1.7 °C 20:38 1.7 °C 2.1 °C, 2009 1.0 °C, 2010
Max 1hr Hum Fall 16% 13:25 9% 27%, 2014 4%, 2010
Max 10m Wind Speed 11.3 mph 13:16 9.0 mph 13.1 mph, 2014 5.8 mph, 2015
Minimum Feels-like 18.5 °C 02:06 14.4 °C 20.6 °C, 2012 12.8 °C, 2015
Maximum Feels-like 27.3 °C 15:21 23.6 °C 29.9 °C, 2012 20.6 °C, 2015
Mean Feels-like 22.8 °C 19.1 °C 25.0 °C, 2012 17.2 °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 7.9 °C (-1.1) 8.0 °C (-1.0) 12.0 °C (+3.0), 2016 5.2 °C (-3.8), 2010
Humidity Range 38% 31% 49%, 2016 32%, 2010
Pressure Range 5 hPa 6 hPa 10 hPa, 2013 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5 [38%]92 hrs (90%) [40%] 12 [91%], 2016 1 [8%], 2011
Wet Hours 2.5
[Mean rain rate: 2.1 mm/h]
26 hrs (122%) [6.3%] 2.5, 2017 0, 2009
Cloud Cover am: Overcast
pm: Partly Cloudy
Events None
Comments o.night 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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