Daily Report for 17th January 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 0.9 °C (-1.5) 23:47 4.0 °C (+1.5) 6.6 °C (+4.2), 2014 -5.5 °C (-7.9), 2013
Maximum Temperature 4.6 °C (-2.4) 01:48 7.8 °C (+0.8) 9.8 °C (+2.8), 2011 2.3 °C (-4.7), 2013
Mean Temperature 2.8 °C (-1.9) 6.1 °C (+1.2) 7.6 °C, 2011 -1.1 °C, 2013
Minimum Humidity 64% 14:55 74% 85%, 2011 49%, 2009
Maximum Humidity 94% 00:43 88% 98%, 2010 84%, 2017
Mean Humidity 80% 82% 93%, 2011 68%, 2009
Minimum Pressure 1002 hPa 00:59 1025 hPa 1033 hPa, 2017 987 hPa, 2014
Maximum Pressure 1019 hPa 23:18 1032 hPa 1038 hPa, 2017 993 hPa, 2014
Mean Pressure 1012 hPa 1029 hPa 1036 hPa, 2017 990 hPa, 2014
Mean Wind Speed 5.0 mph (-0.2) 4.5 mph (-0.7) 10.1 mph, 2018 0.5 mph, 2017
Maximum Wind Speed 13.5 mph 11:34 12.2 mph 20.4 mph, 2018 5.8 mph, 2017
Maximum Gust 20.7 mph 08:01 18.7 mph 34.6 mph, 2018 8.4 mph, 2017
Mean Wind Direction NW
Rainfall 0.8 mm 4.5 mm (15%) 16.1 mm, 2011
Maximum Hourly Rain 0.4 mm 02:20 5.0 mm, 2009
Maximum 10-min Rain 0.2 mm 08:21 1.1 mm, 2011
Maximum Rain Rate 0.5 mm/h 02:20 15 mm/h, 2011
Minimum Dew Point -2.8 °C 19:41 1.1 °C 5.3 °C, 2014 -6.7 °C, 2013
Maximum Dew Point 3.7 °C 01:21 5.0 °C 8.9 °C, 2011 -0.5 °C, 2013
Mean Dew Point -0.4 °C 3.2 °C 6.5 °C, 2011 -3.1 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 1.6 °C * 08:55 4.7 °C 8.6 °C, 2011 -5.5 °C, 2013
Day Maximum (09-21) * 3.8 °C * 14:32 7.6 °C 9.0 °C, 2009 2.3 °C, 2013
Max 10m Temp Rise 0.2 °C 10:00 0.3 °C 0.6 °C, 2010 0.1 °C, 2011
Max 1hr Temp Rise 0.9 °C 11:21 0.9 °C 2.4 °C, 2013 0.4 °C, 2011
Max 1hr Hum Rise 4% 16:04 4% 7%, 2018 2%, 2016
Max 10m Temp Fall 0.9 °C 08:10 0.4 °C 0.9 °C, 2019 0.1 °C, 2016
Max 1hr Temp Fall 1.8 °C 08:42 1.1 °C 2.0 °C, 2017 0.3 °C, 2016
Max 1hr Hum Fall 8% 10:24 6% 13%, 2017 3%, 2016
Max 10m Wind Speed 10.8 mph 08:05 8.7 mph 16.4 mph, 2018 4.4 mph, 2017
Minimum Feels-like -4.4 °C 09:56 0.4 °C 2.8 °C, 2011 -5.5 °C, 2013
Maximum Feels-like 4.6 °C 02:16 7.6 °C 10.6 °C, 2011 2.3 °C, 2013
Mean Feels-like -0.4 °C 4.2 °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 3.7 °C (-0.9) 3.8 °C (-0.7) 8.5 °C (+3.9), 2012 1.9 °C (-2.7), 2014
Humidity Range 30% 14% 39%, 2009 12%, 2011
Pressure Range 17 hPa 6 hPa 19 hPa, 2010 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6.5 [87%]28 hrs (112%) [22%] 7 [93%], 2017 0.1 [1%], 2011
Wet Hours 1
[Mean rain rate: 0.8 mm/h]
6.3 hrs (17%) [1.5%] 8, 2011 , 2009
Cloud Cover Sunny
Events None
Comments 02, 08 Showers
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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