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 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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