Daily Report for 17th December 2014

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.8 °C (+3.7) 00:03 3.2 °C (-0.2) 6.8 °C (+3.7), 2014 -6.0 °C (-9.1), 2010
Maximum Temperature 12.9 °C (+5.2) 14:01 8.5 °C (+0.2) 12.9 °C (+5.2), 2014 -0.8 °C (-8.5), 2010
Mean Temperature 11.1 °C (+4.4) 5.8 °C (-0.0) 11.1 °C, 2014 -3.0 °C, 2010
Minimum Humidity 86% 15:08 72% 92%, 2013 72%, 2009
Maximum Humidity 94% 01:23 92% 98%, 2009 87%, 2010
Mean Humidity 91% 84% 96%, 2013 81%, 2010
Minimum Pressure 1000 hPa 04:14 1010 hPa 1015 hPa, 2013 995 hPa, 2010
Maximum Pressure 1010 hPa 00:00 1018 hPa 1025 hPa, 2013 1002 hPa, 2010
Mean Pressure 1006 hPa 1014 hPa 1021 hPa, 2013 998 hPa, 2010
Mean Wind Speed 6.9 mph (+1.8) 5.6 mph (+0.5) 9.0 mph, 2009 2.0 mph, 2013
Maximum Wind Speed 12.8 mph 23:01 14.0 mph 22.8 mph, 2009 8.7 mph, 2010
Maximum Gust 19.4 mph 00:37 20.1 mph 33.1 mph, 2009 12.5 mph, 2013
Mean Wind Direction WSW
Rainfall 5.7 mm 25.9 mm (84%) 6.1 mm, 2013
Maximum Hourly Rain 2.1 mm 01:01 2.1 mm, 2014
Maximum 10-min Rain 0.6 mm 00:17 0.7 mm, 2013
Maximum Rain Rate 3.6 mm/h 00:11 3.6 mm/h, 2014
Minimum Dew Point 5.6 °C 00:03 0.5 °C 5.6 °C, 2014 -8.0 °C, 2010
Maximum Dew Point 11.0 °C 18:10 6.6 °C 11.0 °C, 2014 -3.8 °C, 2010
Mean Dew Point 9.7 °C 3.2 °C 9.7 °C, 2014 -5.8 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 5.6 °C * 21:01 3.7 °C 5.6 °C, 2014 -3.3 °C, 2010
Day Maximum (09-21) 12.9 °C 14:01 7.6 °C 12.9 °C, 2014 -0.8 °C, 2010
Max 10m Temp Rise 0.2 °C 01:53 0.3 °C 0.4 °C, 2011 0.2 °C, 2010
Max 1hr Temp Rise 1.0 °C 01:53 1.2 °C 1.2 °C, 2011 0.7 °C, 2010
Max 1hr Hum Rise 3% 19:11 6% 12%, 2009 2%, 2013
Max 10m Temp Fall 0.1 °C 15:14 0.3 °C 0.5 °C, 2010 0.1 °C, 2014
Max 1hr Temp Fall 0.3 °C 16:05 1.0 °C 1.6 °C, 2010 0.3 °C, 2014
Max 1hr Hum Fall 3% 13:04 9% 9%, 2009 3%, 2013
Max 10m Wind Speed 9.5 mph 23:01 10.5 mph 15.1 mph, 2009 6.9 mph, 2010
Minimum Feels-like 2.7 °C 00:37 -0.7 °C 2.7 °C, 2014 -9.0 °C, 2010
Maximum Feels-like 14.7 °C 13:37 8.1 °C 14.7 °C, 2014 -0.8 °C, 2010
Mean Feels-like 11.8 °C 3.6 °C 11.8 °C, 2014 -5.7 °C, 2010
Air-frost Hrs 0 hrs 0.1 hrs 24 hrs, 2010 0 hrs, 2011
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.1 °C (+1.5) 5.3 °C (+0.4) 6.1 °C (+1.5), 2014 3.1 °C (-1.5), 2012
Humidity Range 8% 20% 26%, 2009 6%, 2013
Pressure Range 10 hPa 8 hPa 11 hPa, 2011 4 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5 [71%]53 hrs (199%) [44%] 6 [86%], 2012 0.1 [1%], 2013
Wet Hours 5
[Mean rain rate: 1.1 mm/h]
32 hrs (93%) [7.7%] 8, 2013 0.2, 2012
Cloud Cover unknown
Events None
Comments blr
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

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Webcam Summary of Cloud Conditions

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