Daily Report for 27th February 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 0.9 °C (-1.7) 09:21 4.5 °C (+2.3) 6.5 °C (+3.9), 2009 -4.3 °C (-6.9), 2018
Maximum Temperature 6.9 °C (-1.8) 14:23 10.3 °C (+2.7) 16.9 °C (+8.2), 2019 -0.1 °C (-8.8), 2018
Mean Temperature 4.1 °C (-1.7) 7.5 °C (+2.5) 10.2 °C, 2009 -2.4 °C, 2018
Minimum Humidity 59% 17:03 68% 76%, 2010 47%, 2016
Maximum Humidity 94% 10:33 90% 98%, 2013 74%, 2016
Mean Humidity 78% 81% 89%, 2010 61%, 2016
Minimum Pressure 996 hPa 07:01 1007 hPa 1032 hPa, 2013 982 hPa, 2017
Maximum Pressure 1016 hPa 23:14 1019 hPa 1035 hPa, 2013 999 hPa, 2017
Mean Pressure 1005 hPa 1012 hPa 1034 hPa, 2013 989 hPa, 2017
Mean Wind Speed 5.2 mph (+0.1) 8.6 mph (+3.5) 7.6 mph, 2017 1.8 mph, 2019
Maximum Wind Speed 16.8 mph 14:24 20.5 mph 18.9 mph, 2017 8.4 mph, 2019
Maximum Gust 27.6 mph 15:17 33.6 mph 27.6 mph, 2020 11.5 mph, 2019
Mean Wind Direction WNW
Rainfall / Snow-melt approx. 7.5 mm 67.5 mm (181%) 9.1 mm, 2017
Maximum Hourly Rain 1.8 mm 06:16 5.6 mm, 2017
Maximum 10-min Rain 0.5 mm 04:35 2.0 mm, 2017
Maximum Rain Rate 18 mm/h 04:35 30 mm/h, 2010
Minimum Dew Point -1.2 °C 20:06 1.5 °C 3.7 °C, 2009 -8.3 °C, 2018
Maximum Dew Point 2.6 °C 12:49 7.1 °C 7.9 °C, 2010 -3.7 °C, 2018
Mean Dew Point 0.5 °C 4.3 °C 5.9 °C, 2012 -5.9 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 1.2 °C * 08:58 5.4 °C 8.2 °C, 2017 -4.1 °C, 2018
Day Maximum (09-21) 6.9 °C 14:24 10.1 °C 16.9 °C, 2019 -0.1 °C, 2018
Max 10m Temp Rise 0.7 °C 12:46 0.4 °C 1.0 °C, 2019 0.3 °C, 2012
Max 1hr Temp Rise 2.3 °C 13:07 1.5 °C 4.3 °C, 2019 0.8 °C, 2017
Max 1hr Hum Rise 8% 03:03 7% 19%, 2018 4%, 2016
Max 10m Temp Fall 0.3 °C 05:56 0.5 °C 1.1 °C, 2018 0.2 °C, 2012
Max 1hr Temp Fall 1.0 °C 06:18 1.4 °C 2.5 °C, 2019 0.5 °C, 2012
Max 1hr Hum Fall 15% 13:15 9% 15%, 2014 4%, 2012
Max 10m Wind Speed 13.8 mph 13:13 15.2 mph 14.4 mph, 2017 6.4 mph, 2019
Minimum Feels-like -3.6 °C 09:46 -0.0 °C 3.2 °C, 2012 -10.3 °C, 2018
Maximum Feels-like 5.5 °C 18:26 10.0 °C 17.1 °C, 2019 -1.1 °C, 2018
Mean Feels-like 1.2 °C 5.3 °C 9.8 °C, 2019 -6.4 °C, 2018
Air-frost Hrs 0 hrs 0 hrs 24 hrs, 2018 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.0 °C (-0.1) 5.8 °C (+0.4) 14.7 °C (+8.6), 2019 3.2 °C (-2.9), 2016
Humidity Range 35% 22% 48%, 2014 11%, 2017
Pressure Range 20 hPa 12 hPa 20 hPa, 2020 3 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4.4 [46%]77 hrs (106%) [32%] 9.6 [100%], 2019 0 [0%], 2012
Wet Hours 8
[Mean rain rate: 0.9 mm/h]
78 hrs (161%) [12%] 8, 2020 , 2009
Cloud Cover am: Overcast
pm: Mostly Sunny
Events Snowfall: ~3 cm
Comments am Rain -> Snow
Extra Comments higher elevations on heath reported some settling
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 5.5 °C
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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