Daily Report for 31st January 2018

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 2.8 °C (+0.4) 23:32 3.9 °C (+1.5) 7.2 °C (+4.8), 2013 -4.6 °C (-7.0), 2019
Maximum Temperature 9.6 °C (+2.6) 01:11 8.9 °C (+1.9) 13.3 °C (+6.3), 2016 1.7 °C (-5.3), 2012
Mean Temperature 6.5 °C (+1.5) 6.4 °C (+1.7) 9.0 °C, 2016 -0.5 °C, 2019
Minimum Humidity 63% 16:34 75% 89%, 2014 48%, 2009
Maximum Humidity 96% 00:18 93% 98%, 2014 64%, 2009
Mean Humidity 82% 85% 96%, 2014 56%, 2009
Minimum Pressure 1000 hPa 23:30 1005 hPa 1025 hPa, 2011 979 hPa, 2015
Maximum Pressure 1014 hPa 00:00 1016 hPa 1029 hPa, 2012 993 hPa, 2015
Mean Pressure 1005 hPa 1011 hPa 1026 hPa, 2012 984 hPa, 2015
Mean Wind Speed 8.7 mph (+3.5) 6.6 mph (+1.4) 9.4 mph, 2013 2.7 mph, 2011
Maximum Wind Speed 17.6 mph 14:03 16.8 mph 23.5 mph, 2013 8.1 mph, 2010
Maximum Gust 27.6 mph 02:19 27.4 mph 33.4 mph, 2013 11.8 mph, 2011
Mean Wind Direction WSW
Rainfall 1.6 mm 65.4 mm (119%) 8.7 mm, 2014
Maximum Hourly Rain 0.8 mm 07:39 2.4 mm, 2014
Maximum 10-min Rain 0.4 mm 11:15 0.9 mm, 2014
Maximum Rain Rate 3.0 mm/h 07:23 18 mm/h, 2014
Minimum Dew Point -0.7 °C 17:04 1.5 °C 2.8 °C, 2017 -5.6 °C, 2019
Maximum Dew Point 8.8 °C 00:30 6.8 °C 11.4 °C, 2016 -1.0 °C, 2010
Mean Dew Point 3.6 °C 4.0 °C 6.4 °C, 2016 -3.1 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 7.0 °C * 21:08 4.9 °C 7.2 °C, 2013 -4.6 °C, 2019
Day Maximum (09-21) * 8.6 °C * 10:05 8.5 °C 13.3 °C, 2016 1.7 °C, 2012
Max 10m Temp Rise 0.2 °C 12:46 0.4 °C 0.9 °C, 2014 0.2 °C, 2011
Max 1hr Temp Rise 0.4 °C 01:01 1.0 °C 2.7 °C, 2014 0.4 °C, 2018
Max 1hr Hum Rise 7% 18:03 6% 14%, 2019 1%, 2017
Max 10m Temp Fall 1.1 °C 10:25 0.4 °C 1.2 °C, 2013 0.1 °C, 2017
Max 1hr Temp Fall 2.7 °C 11:14 1.1 °C 2.7 °C, 2018 0.3 °C, 2017
Max 1hr Hum Fall 10% 16:25 7% 16%, 2015 1%, 2017
Max 10m Wind Speed 13.8 mph 16:01 12.9 mph 16.1 mph, 2013 6.4 mph, 2010
Minimum Feels-like -2.6 °C 23:51 -0.2 °C 2.9 °C, 2013 -7.0 °C, 2010
Maximum Feels-like 7.7 °C 01:16 8.5 °C 15.3 °C, 2016 1.5 °C, 2012
Mean Feels-like 2.8 °C 4.0 °C 8.6 °C, 2016 -3.2 °C, 2019
Air-frost Hrs 0 hrs 0.1 hrs 13 hrs, 2010 0 hrs, 2013
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.8 °C (+2.2) 4.9 °C (+0.3) 9.0 °C (+4.4), 2016 2.8 °C (-1.8), 2013
Humidity Range 33% 18% 38%, 2015 2%, 2017
Pressure Range 14 hPa 11 hPa 21 hPa, 2014 1 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2.3 [28%]57 hrs (123%) [24%] 5 [62%], 2019 0 [0%], 2012
Wet Hours 2
[Mean rain rate: 0.8 mm/h]
63 hrs (94%) [8.5%] 8, 2014 , 2009
Cloud Cover am: Mostly Cloudy or Overcast
pm: Partly Cloudy with periods of Mostly Sunny
Events None
Comments am 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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