Daily Report for 17th January 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 2.2 °C (-0.2) 03:53 3.9 °C (+1.4) 6.6 °C (+4.2), 2014 -5.5 °C (-7.9), 2013
Maximum Temperature 7.1 °C (+0.1) 14:38 8.0 °C (+1.0) 9.8 °C (+2.8), 2011 2.3 °C (-4.7), 2013
Mean Temperature 4.7 °C (-0.0) 5.9 °C (+1.2) 7.6 °C, 2011 -1.1 °C, 2013
Minimum Humidity 60% 14:42 75% 85%, 2011 49%, 2009
Maximum Humidity 92% 23:56 92% 98%, 2010 84%, 2017
Mean Humidity 73% 84% 93%, 2011 68%, 2009
Minimum Pressure 996 hPa 00:45 1002 hPa 1033 hPa, 2017 987 hPa, 2014
Maximum Pressure 1009 hPa 16:46 1014 hPa 1038 hPa, 2017 993 hPa, 2014
Mean Pressure 1004 hPa 1008 hPa 1036 hPa, 2017 990 hPa, 2014
Mean Wind Speed 10.1 mph (+4.9) 6.7 mph (+1.5) 10.1 mph, 2018 0.5 mph, 2017
Maximum Wind Speed 20.4 mph 12:45 17.2 mph 20.4 mph, 2018 5.8 mph, 2017
Maximum Gust 34.6 mph 12:45 28.3 mph 34.6 mph, 2018 8.4 mph, 2017
Mean Wind Direction WSW
Rainfall 1.0 mm 33.8 mm (112%) 16.1 mm, 2011
Maximum Hourly Rain 0.8 mm 23:56 5.0 mm, 2009
Maximum 10-min Rain 0.4 mm 23:51 1.1 mm, 2011
Maximum Rain Rate 2.4 mm/h 23:56 15 mm/h, 2011
Minimum Dew Point -1.9 °C 02:21 1.2 °C 5.3 °C, 2014 -6.7 °C, 2013
Maximum Dew Point 5.4 °C 23:58 5.9 °C 8.9 °C, 2011 -0.5 °C, 2013
Mean Dew Point 0.3 °C 3.4 °C 6.5 °C, 2011 -3.1 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 2.2 °C 03:53 4.4 °C 8.6 °C, 2011 -5.5 °C, 2013
Day Maximum (09-21) 7.1 °C 14:38 7.8 °C 9.0 °C, 2009 2.3 °C, 2013
Max 10m Temp Rise 0.3 °C 09:58 0.4 °C 0.6 °C, 2010 0.1 °C, 2011
Max 1hr Temp Rise 1.1 °C 10:17 0.9 °C 2.4 °C, 2013 0.4 °C, 2011
Max 1hr Hum Rise 7% 22:19 5% 7%, 2018 2%, 2016
Max 10m Temp Fall 0.3 °C 02:58 0.4 °C 0.9 °C, 2019 0.1 °C, 2016
Max 1hr Temp Fall 0.8 °C 17:17 1.0 °C 2.0 °C, 2017 0.3 °C, 2016
Max 1hr Hum Fall 5% 02:19 7% 13%, 2017 3%, 2016
Max 10m Wind Speed 16.4 mph 12:53 13.3 mph 16.4 mph, 2018 4.4 mph, 2017
Minimum Feels-like -4.7 °C 01:59 -0.5 °C 2.8 °C, 2011 -5.5 °C, 2013
Maximum Feels-like 4.4 °C 14:05 7.3 °C 10.6 °C, 2011 2.3 °C, 2013
Mean Feels-like 0.1 °C 3.1 °C 6.7 °C, 2011 -1.9 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 12 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.9 °C (+0.3) 4.1 °C (-0.4) 8.5 °C (+3.9), 2012 1.9 °C (-2.7), 2014
Humidity Range 32% 17% 39%, 2009 12%, 2011
Pressure Range 13 hPa 12 hPa 19 hPa, 2010 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6.4 [85%]26 hrs (105%) [21%] 7 [93%], 2017 0.1 [1%], 2011
Wet Hours 2
[Mean rain rate: 0.5 mm/h]
29 hrs (79%) [7.1%] 8, 2011 , 2009
Cloud Cover am: Sunny
pm: Mostly Sunny
Events None
Comments 22- Rain
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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