Daily Report for 18th November 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.6 °C (-0.2) 05:53 4.5 °C (-1.2) 10.9 °C (+6.1), 2009 1.0 °C (-3.8), 2012
Maximum Temperature 8.6 °C (-1.2) 11:21 10.9 °C (+0.2) 14.8 °C (+5.0), 2015 7.3 °C (-2.5), 2016
Mean Temperature 6.7 °C (-0.7) 8.1 °C (-0.5) 12.7 °C, 2015 4.7 °C, 2012
Minimum Humidity 74% 02:25 72% 92%, 2013 60%, 2016
Maximum Humidity 94% 16:06 94% 98%, 2010 77%, 2016
Mean Humidity 86% 85% 96%, 2013 70%, 2016
Minimum Pressure 1020 hPa 17:31 1016 hPa 1020 hPa, 2017 991 hPa, 2016
Maximum Pressure 1027 hPa 00:30 1023 hPa 1027 hPa, 2017 998 hPa, 2016
Mean Pressure 1023 hPa 1019 hPa 1023 hPa, 2017 994 hPa, 2016
Mean Wind Speed 4.2 mph (-0.4) 3.6 mph (-1.0) 11.0 mph, 2009 1.6 mph, 2012
Maximum Wind Speed 13.4 mph 11:32 10.5 mph 22.8 mph, 2015 5.4 mph, 2012
Maximum Gust 19.6 mph 11:33 16.6 mph 37.1 mph, 2015 7.6 mph, 2012
Mean Wind Direction W
Rainfall 1.8 mm 25.4 mm (76%) 3.0 mm, 2010
Maximum Hourly Rain 0.8 mm 16:11 0.8 mm, 2010
Maximum 10-min Rain 0.2 mm 16:11 0.5 mm, 2010
Maximum Rain Rate 1.2 mm/h 15:35 8 mm/h, 2010
Minimum Dew Point 1.5 °C 02:20 2.4 °C 7.2 °C, 2009 -0.6 °C, 2016
Maximum Dew Point 7.3 °C 14:29 8.1 °C 11.9 °C, 2011 2.6 °C, 2016
Mean Dew Point 4.6 °C 5.7 °C 8.9 °C, 2011 0.3 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 3.8 °C * 21:02 5.4 °C 10.9 °C, 2009 1.0 °C, 2012
Day Maximum (09-21) 8.6 °C 11:21 10.9 °C 14.8 °C, 2015 7.2 °C, 2016
Max 10m Temp Rise 0.4 °C 09:57 0.4 °C 0.6 °C, 2012 0.1 °C, 2013
Max 1hr Temp Rise 1.6 °C 10:38 1.4 °C 1.9 °C, 2012 0.3 °C, 2013
Max 1hr Hum Rise 8% 12:06 6% 10%, 2009 2%, 2013
Max 10m Temp Fall 0.3 °C 15:43 0.4 °C 0.6 °C, 2012 0.2 °C, 2010
Max 1hr Temp Fall 1.0 °C 16:15 1.4 °C 2.5 °C, 2012 0.5 °C, 2009
Max 1hr Hum Fall 4% 20:53 8% 9%, 2009 4%, 2017
Max 10m Wind Speed 9.6 mph 11:17 7.9 mph 16.9 mph, 2015 4.1 mph, 2012
Minimum Feels-like 1.1 °C 06:48 1.7 °C 11.1 °C, 2009 -2.1 °C, 2016
Maximum Feels-like 8.2 °C 15:00 11.4 °C 16.4 °C, 2011 5.8 °C, 2016
Mean Feels-like 4.7 °C 7.3 °C 13.5 °C, 2009 1.8 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.0 °C (-1.0) 6.4 °C (+1.5) 7.0 °C (+2.0), 2012 2.9 °C (-2.1), 2009
Humidity Range 20% 22% 28%, 2012 6%, 2013
Pressure Range 7 hPa 7 hPa 8 hPa, 2013 3 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]49 hrs (116%) [33%] 7.5 [96%], 2012 0 [0%], 2009
Wet Hours 4
[Mean rain rate: 0.5 mm/h]
33 hrs (86%) [7.5%] 4, 2010 0, 2011
Cloud Cover am: Mostly Cloudy transitioned to Overcast
pm: Overcast
Events None
Comments Rain
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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