Daily Report for 12th December 2016

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.2 °C (+0.9) 05:09 5.4 °C (+1.9) 5.8 °C (+2.5), 2015 -4.7 °C (-8.0), 2012
Maximum Temperature 11.6 °C (+3.6) 22:07 10.5 °C (+2.1) 13.2 °C (+5.2), 2015 2.1 °C (-5.9), 2012
Mean Temperature 8.3 °C (+2.2) 7.9 °C (+2.0) 10.0 °C, 2015 -1.1 °C, 2012
Minimum Humidity 78% 12:24 71% 97%, 2013 72%, 2011
Maximum Humidity 90% 18:52 80% 98%, 2009 88%, 2015
Mean Humidity 81% 76% 98%, 2013 81%, 2016
Minimum Pressure 1020 hPa 18:09 1023 hPa 1029 hPa, 2009 988 hPa, 2011
Maximum Pressure 1026 hPa 00:26 1026 hPa 1033 hPa, 2009 1005 hPa, 2014
Mean Pressure 1023 hPa 1025 hPa 1031 hPa, 2009 996 hPa, 2014
Mean Wind Speed 2.3 mph (-2.8) 3.3 mph (-1.8) 7.8 mph, 2015 1.1 mph, 2012
Maximum Wind Speed 6.8 mph 19:53 9.8 mph 22.5 mph, 2011 6.8 mph, 2016
Maximum Gust 10.5 mph 15:32 14.6 mph 40.9 mph, 2011 9.7 mph, 2012
Mean Wind Direction SSW
Rainfall 0.8 mm 7.8 mm (36%) 10.7 mm, 2014
Maximum Hourly Rain 0.6 mm 16:28 3.0 mm, 2014
Maximum 10-min Rain 0.2 mm 16:28 1.1 mm, 2014
Maximum Rain Rate 0.5 mm/h 15:58 18 mm/h, 2014
Minimum Dew Point 0.7 °C 05:09 1.4 °C 3.5 °C, 2015 -5.1 °C, 2012
Maximum Dew Point 9.6 °C 19:03 6.3 °C 9.9 °C, 2015 1.4 °C, 2012
Mean Dew Point 5.2 °C 4.0 °C 6.9 °C, 2015 -2.2 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 4.2 °C 05:09 5.8 °C 8.5 °C, 2014 -4.7 °C, 2012
Day Maximum (09-21) * 11.5 °C * 20:34 10.4 °C 13.2 °C, 2015 2.1 °C, 2012
Max 10m Temp Rise 0.3 °C 12:19 0.3 °C 0.6 °C, 2013 0.2 °C, 2014
Max 1hr Temp Rise 0.9 °C 12:19 1.2 °C 2.2 °C, 2013 0.7 °C, 2014
Max 1hr Hum Rise 4% 12:52 3% 9%, 2014 0%, 2013
Max 10m Temp Fall 0.4 °C 12:48 0.3 °C 0.5 °C, 2014 0.1 °C, 2015
Max 1hr Temp Fall 1.2 °C 04:26 0.9 °C 1.5 °C, 2010 0.2 °C, 2015
Max 1hr Hum Fall 3% 19:55 4% 9%, 2014 1%, 2013
Max 10m Wind Speed 5.5 mph 19:54 7.4 mph 15.4 mph, 2011 5.5 mph, 2012
Minimum Feels-like 3.5 °C 05:52 3.6 °C 3.5 °C, 2016 -7.9 °C, 2017
Maximum Feels-like 12.0 °C 22:17 10.7 °C 14.1 °C, 2015 2.1 °C, 2012
Mean Feels-like 8.0 °C 7.6 °C 9.6 °C, 2015 -2.2 °C, 2017
Air-frost Hrs 0 hrs 0.3 hrs 12 hrs, 2012 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.4 °C (+2.6) 5.1 °C (+0.1) 8.6 °C (+3.8), 2013 3.6 °C (-1.2), 2009
Humidity Range 12% 10% 22%, 2011 1%, 2013
Pressure Range 6 hPa 4 hPa 20 hPa, 2011 3 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]27 hrs (143%) [31%] 6.3 [89%], 2017 0 [0%], 2014
Wet Hours 1
[Mean rain rate: 0.8 mm/h]
10 hrs (42%) [3.5%] 7, 2014 0, 2009
Cloud Cover Overcast
Events None
Comments Showers
Extra Comments
Issues 10-19 T/H data loss (12-19 casa-subbed)
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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