Daily Report for 18th January 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.2 °C (+0.8) 23:57 3.8 °C (+1.4) 7.6 °C (+5.2), 2014 -3.3 °C (-5.7), 2017
Maximum Temperature 11.2 °C (+4.2) 03:44 8.2 °C (+1.2) 11.9 °C (+4.9), 2012 1.8 °C (-5.2), 2013
Mean Temperature 7.4 °C (+2.5) 6.0 °C (+1.3) 9.3 °C, 2012 -0.8 °C, 2013
Minimum Humidity 62% 05:56 74% 95%, 2010 50%, 2009
Maximum Humidity 95% 01:06 92% 98%, 2010 82%, 2017
Mean Humidity 74% 84% 98%, 2010 70%, 2017
Minimum Pressure 991 hPa 04:01 1002 hPa 1036 hPa, 2017 989 hPa, 2014
Maximum Pressure 1007 hPa 23:30 1013 hPa 1039 hPa, 2017 993 hPa, 2014
Mean Pressure 1000 hPa 1007 hPa 1038 hPa, 2017 990 hPa, 2014
Mean Wind Speed 10.4 mph (+5.2) 6.9 mph (+1.7) 10.4 mph, 2018 0.2 mph, 2017
Maximum Wind Speed 31.0 mph 04:25 18.0 mph 31.0 mph, 2018 3.8 mph, 2017
Maximum Gust 47.2 mph 05:20 29.3 mph 47.2 mph, 2018 5.2 mph, 2017
Mean Wind Direction W
Rainfall 1.2 mm 35.0 mm (110%) 7.6 mm, 2011
Maximum Hourly Rain 0.6 mm 01:02 3.0 mm, 2009
Maximum 10-min Rain 0.4 mm 00:12 1.1 mm, 2011
Maximum Rain Rate 2.4 mm/h 00:11 10 mm/h, 2011
Minimum Dew Point -0.1 °C 23:26 1.2 °C 4.8 °C, 2014 -6.8 °C, 2017
Maximum Dew Point 8.4 °C 02:17 6.0 °C 11.1 °C, 2012 -2.3 °C, 2013
Mean Dew Point 3.0 °C 3.4 °C 8.4 °C, 2012 -5.0 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 5.3 °C * 21:09 4.5 °C 6.8 °C, 2014 -3.3 °C, 2017
Day Maximum (09-21) * 8.8 °C * 14:24 7.9 °C 11.9 °C, 2012 -0.8 °C, 2013
Max 10m Temp Rise 0.5 °C 02:24 0.4 °C 0.5 °C, 2017 0.1 °C, 2013
Max 1hr Temp Rise 1.7 °C 01:26 0.9 °C 1.8 °C, 2017 0.4 °C, 2013
Max 1hr Hum Rise 6% 08:04 5% 6%, 2013 2%, 2010
Max 10m Temp Fall 0.4 °C 06:00 0.4 °C 0.4 °C, 2017 0.1 °C, 2012
Max 1hr Temp Fall 1.8 °C 06:51 1.0 °C 1.8 °C, 2018 0.3 °C, 2012
Max 1hr Hum Fall 15% 03:13 7% 15%, 2018 0%, 2010
Max 10m Wind Speed 23.3 mph 04:44 13.9 mph 23.3 mph, 2018 2.7 mph, 2017
Minimum Feels-like -1.2 °C 23:26 -0.6 °C 4.7 °C, 2014 -8.7 °C, 2013
Maximum Feels-like 11.3 °C 03:17 7.5 °C 13.7 °C, 2012 -0.4 °C, 2013
Mean Feels-like 4.2 °C 3.1 °C 8.9 °C, 2012 -5.3 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 18 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 8.0 °C (+3.4) 4.4 °C (-0.2) 8.0 °C (+3.4), 2018 2.2 °C (-2.4), 2014
Humidity Range 33% 18% 44%, 2009 3%, 2010
Pressure Range 16 hPa 12 hPa 16 hPa, 2018 1 hPa, 2010
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4.3 [57%]30 hrs (115%) [23%] 7.5 [99%], 2017 0 [0%], 2012
Wet Hours 2
[Mean rain rate: 0.6 mm/h]
31 hrs (80%) [7.2%] 10, 2013 , 2009
Cloud Cover am: Sunny
pm: Partly Cloudy or Mostly Cloudy
Events None
Comments o.night Rain
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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