Daily Report for 15th January 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 5.4 °C (+3.0) 00:09 4.0 °C (+1.6) 7.8 °C (+5.4), 2011 -2.6 °C (-5.0), 2013
Maximum Temperature 10.8 °C (+3.8) 13:56 8.1 °C (+1.1) 11.2 °C (+4.2), 2011 1.6 °C (-5.4), 2013
Mean Temperature 7.8 °C (+3.4) 6.0 °C (+1.3) 10.3 °C, 2011 0.6 °C, 2013
Minimum Humidity 79% 00:09 77% 98%, 2010 53%, 2015
Maximum Humidity 96% 10:54 92% 98%, 2010 83%, 2016
Mean Humidity 88% 86% 98%, 2010 74%, 2015
Minimum Pressure 992 hPa 14:46 1003 hPa 1024 hPa, 2012 987 hPa, 2015
Maximum Pressure 1013 hPa 00:15 1015 hPa 1027 hPa, 2012 996 hPa, 2015
Mean Pressure 999 hPa 1009 hPa 1026 hPa, 2012 990 hPa, 2015
Mean Wind Speed 9.1 mph (+3.9) 6.3 mph (+1.1) 10.8 mph, 2015 3.1 mph, 2012
Maximum Wind Speed 19.1 mph 07:22 16.7 mph 24.6 mph, 2015 9.7 mph, 2010
Maximum Gust 34.6 mph 07:23 27.3 mph 40.9 mph, 2015 14.3 mph, 2010
Mean Wind Direction SW
Rainfall 8.2 mm 32.8 mm (123%) 8.2 mm, 2017
Maximum Hourly Rain 1.8 mm 10:45 2.8 mm, 2015
Maximum 10-min Rain 1.8 mm 17:21 1.8 mm, 2018
Maximum Rain Rate 60 mm/h 17:15 60 mm/h, 2018
Minimum Dew Point 2.1 °C 00:09 1.6 °C 5.6 °C, 2011 -4.2 °C, 2013
Maximum Dew Point 9.7 °C 13:25 6.0 °C 10.2 °C, 2014 -0.5 °C, 2016
Mean Dew Point 5.9 °C 3.7 °C 8.6 °C, 2014 -1.7 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 4.7 °C * 22:14 4.5 °C 7.8 °C, 2011 -0.1 °C, 2012
Day Maximum (09-21) 10.8 °C 13:56 7.9 °C 11.2 °C, 2011 1.6 °C, 2013
Max 10m Temp Rise 0.3 °C 04:56 0.4 °C 0.5 °C, 2012 0.2 °C, 2011
Max 1hr Temp Rise 0.9 °C 13:24 0.9 °C 1.8 °C, 2012 0.5 °C, 2015
Max 1hr Hum Rise 6% 03:59 5% 8%, 2016 0%, 2010
Max 10m Temp Fall 0.5 °C 17:35 0.4 °C 0.5 °C, 2013 0.2 °C, 2010
Max 1hr Temp Fall 1.6 °C 17:56 1.0 °C 1.6 °C, 2018 0.4 °C, 2011
Max 1hr Hum Fall 9% 14:25 7% 18%, 2012 0%, 2010
Max 10m Wind Speed 15.3 mph 08:08 13.0 mph 18.4 mph, 2015 5.8 mph, 2010
Minimum Feels-like 1.1 °C 00:18 -0.1 °C 4.3 °C, 2011 -4.6 °C, 2013
Maximum Feels-like 11.8 °C 13:32 7.6 °C 12.3 °C, 2014 1.5 °C, 2013
Mean Feels-like 4.9 °C 3.4 °C 9.9 °C, 2011 -1.8 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 5 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.4 °C (+0.8) 4.1 °C (-0.5) 8.8 °C (+4.2), 2017 2.0 °C (-2.6), 2009
Humidity Range 17% 15% 40%, 2015 0%, 2010
Pressure Range 21 hPa 12 hPa 21 hPa, 2018 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.5 [7%]14 hrs (66%) [13%] 7.1 [95%], 2012 0 [0%], 2010
Wet Hours 8
[Mean rain rate: 1.0 mm/h]
27 hrs (83%) [7.5%] 13, 2017 , 2009
Cloud Cover am: Overcast
pm: Partly Cloudy with periods of Mostly Sunny
Events None
Comments am Rain, 1715 Shower
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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