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 63%, 2018
Maximum Humidity 90% 18:52 80% 98%, 2009 88%, 2015
Mean Humidity 81% 76% 98%, 2013 79%, 2018
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 0.4 °C, 2018
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% 28%, 2018 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 of the longest continuous period at that extreme value.
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 (entered with a delay of 1-10 days); their reliablity is questionable and they are provided for interest only.
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