Daily Report for 31st January 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -4.6 °C (-7.0) 07:26 2.0 °C (-0.4) 7.2 °C (+4.8), 2013 -4.6 °C (-7.0), 2019
Maximum Temperature 3.3 °C (-3.7) 15:35 6.9 °C (-0.1) 13.3 °C (+6.3), 2016 1.7 °C (-5.3), 2012
Mean Temperature -0.5 °C (-5.4) 4.6 °C (-0.3) 9.0 °C, 2016 -0.5 °C, 2019
Minimum Humidity 69% 16:20 74% 89%, 2014 48%, 2009
Maximum Humidity 96% 08:59 90% 98%, 2014 64%, 2009
Mean Humidity 88% 83% 96%, 2014 56%, 2009
Minimum Pressure 985 hPa 23:22 1014 hPa 1025 hPa, 2011 979 hPa, 2015
Maximum Pressure 997 hPa 00:00 1023 hPa 1029 hPa, 2012 993 hPa, 2015
Mean Pressure 992 hPa 1018 hPa 1026 hPa, 2012 984 hPa, 2015
Mean Wind Speed 4.5 mph (-0.7) 4.3 mph (-0.9) 9.4 mph, 2013 2.7 mph, 2011
Maximum Wind Speed 15.2 mph 16:23 12.1 mph 23.5 mph, 2013 8.1 mph, 2010
Maximum Gust 24.2 mph 18:34 18.9 mph 33.4 mph, 2013 11.8 mph, 2011
Mean Wind Direction E
Rainfall / Snow-melt approx. 2.0 mm 28.5 mm (52%) 8.7 mm, 2014
Maximum Hourly Rain n/a 2.4, 2014
Maximum 10-min Rain n/a 0.9, 2014
Maximum Rain Rate n/a 18, 2014
Minimum Dew Point -5.6 °C 07:23 -0.4 °C 2.8 °C, 2017 -5.6 °C, 2019
Maximum Dew Point 0.1 °C 13:32 4.1 °C 11.4 °C, 2016 -1.0 °C, 2010
Mean Dew Point -2.3 °C 1.9 °C 6.4 °C, 2016 -3.1 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -4.6 °C 07:27 2.7 °C 7.2 °C, 2013 -4.6 °C, 2019
Day Maximum (09-21) 3.3 °C 15:23 6.7 °C 13.3 °C, 2016 1.7 °C, 2012
Max 10m Temp Rise 0.5 °C 08:49 0.3 °C 0.9 °C, 2014 0.2 °C, 2011
Max 1hr Temp Rise 2.1 °C 09:24 1.1 °C 2.7 °C, 2014 0.4 °C, 2018
Max 1hr Hum Rise 14% 17:36 5% 14%, 2019 1%, 2017
Max 10m Temp Fall 0.4 °C 17:48 0.4 °C 1.2 °C, 2013 0.1 °C, 2017
Max 1hr Temp Fall 1.8 °C 18:36 1.3 °C 2.7 °C, 2018 0.3 °C, 2017
Max 1hr Hum Fall 8% 11:48 6% 16%, 2015 1%, 2017
Max 10m Wind Speed 11.6 mph 15:16 8.9 mph 16.1 mph, 2013 6.4 mph, 2010
Minimum Feels-like -6.9 °C 18:57 -1.5 °C 2.9 °C, 2013 -7.0 °C, 2010
Maximum Feels-like 1.9 °C 12:07 6.6 °C 15.3 °C, 2016 1.5 °C, 2012
Mean Feels-like -3.2 °C 2.5 °C 8.6 °C, 2016 -3.2 °C, 2019
Air-frost Hrs 11 hrs 2 hrs 13 hrs, 2010 0 hrs, 2013
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.9 °C (+3.3) 4.9 °C (+0.3) 9.0 °C (+4.4), 2016 2.8 °C (-1.8), 2013
Humidity Range 27% 16% 38%, 2015 2%, 2017
Pressure Range 12 hPa 9 hPa 21 hPa, 2014 1 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 5 [62%]68 hrs (148%) [29%] 5 [62%], 2019 0 [0%], 2012
Wet Hours 3
[Mean rain rate: 0.7 mm/h]
32 hrs (47%) [4.2%] 8, 2014 , 2009
Cloud Cover am: Sunny
pm: Overcast
Events Snowfall: ~2 cm
Air Frost
Comments 21- Snow
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) n/a
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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