Daily Report for 24th January 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -2.3 °C (-4.6) 03:19 2.4 °C (+0.0) 9.3 °C (+7.0), 2016 -2.3 °C (-4.6), 2019
Maximum Temperature 3.8 °C (-3.2) 21:11 6.9 °C (-0.1) 14.8 °C (+7.8), 2016 1.8 °C (-5.2), 2013
Mean Temperature 1.2 °C (-3.9) 4.9 °C (-0.1) 12.4 °C, 2016 1.0 °C, 2013
Minimum Humidity 90% 10:05 75% 90%, 2019 61%, 2015
Maximum Humidity 95% 04:55 89% 97%, 2012 86%, 2017
Mean Humidity 93% 83% 93%, 2012 76%, 2009
Minimum Pressure 1010 hPa 00:15 1020 hPa 1026 hPa, 2017 984 hPa, 2009
Maximum Pressure 1015 hPa 23:32 1027 hPa 1034 hPa, 2011 995 hPa, 2009
Mean Pressure 1012 hPa 1024 hPa 1029 hPa, 2011 990 hPa, 2009
Mean Wind Speed 1.3 mph (-3.9) 4.1 mph (-1.1) 10.6 mph, 2018 0.6 mph, 2017
Maximum Wind Speed 7.7 mph 10:31 11.7 mph 24.9 mph, 2018 6.1 mph, 2017
Maximum Gust 12.7 mph 10:46 18.1 mph 46.1 mph, 2018 7.3 mph, 2017
Mean Wind Direction WSW
Rainfall 0.4 mm 13.0 mm (31%) 11.4 mm, 2018
Maximum Hourly Rain 0.4 mm 11:07 5.7 mm, 2018
Maximum 10-min Rain 0.2 mm 2.6 mm, 2018
Maximum Rain Rate 0.3 mm/h 11:07 53 mm/h, 2018
Minimum Dew Point -3.3 °C 03:17 -0.0 °C 8.0 °C, 2016 -4.8 °C, 2013
Maximum Dew Point 2.8 °C 21:11 4.2 °C 13.2 °C, 2016 -0.9 °C, 2013
Mean Dew Point 0.1 °C 2.2 °C 11.7 °C, 2016 -2.2 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -2.3 °C 03:31 3.2 °C 10.8 °C, 2018 -2.3 °C, 2019
Day Maximum (09-21) 3.8 °C 15:39 6.7 °C 12.8 °C, 2018 1.8 °C, 2013
Max 10m Temp Rise 0.2 °C 04:09 0.3 °C 0.5 °C, 2017 0.1 °C, 2013
Max 1hr Temp Rise 0.8 °C 09:31 1.0 °C 1.8 °C, 2017 0.3 °C, 2013
Max 1hr Hum Rise 2% 11:01 4% 8%, 2018 2%, 2019
Max 10m Temp Fall 0.2 °C 02:15 0.4 °C 1.8 °C, 2018 0.2 °C, 2010
Max 1hr Temp Fall 0.7 °C 22:31 1.2 °C 3.6 °C, 2018 0.4 °C, 2014
Max 1hr Hum Fall 3% 09:47 6% 11%, 2016 1%, 2012
Max 10m Wind Speed 5.6 mph 11:27 8.5 mph 20.0 mph, 2018 4.4 mph, 2017
Minimum Feels-like -5.9 °C 03:19 -0.9 °C 8.0 °C, 2016 -5.9 °C, 2019
Maximum Feels-like 3.8 °C 21:07 6.5 °C 14.6 °C, 2018 1.7 °C, 2013
Mean Feels-like 0.1 °C 3.0 °C 15.2 °C, 2016 -0.9 °C, 2013
Air-frost Hrs 9 hrs 2 hrs 9 hrs, 2019 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.1 °C (+1.4) 4.5 °C (-0.1) 7.8 °C (+3.1), 2012 2.3 °C (-2.4), 2010
Humidity Range 5% 15% 35%, 2015 3%, 2016
Pressure Range 6 hPa 7 hPa 16 hPa, 2015 2 hPa, 2016
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.1 [1%]45 hrs (127%) [25%] 7.7 [99%], 2015 0 [0%], 2010
Wet Hours 1
[Mean rain rate: 0.4 mm/h]		14 hrs (28%) [2.5%] 8, 2012 , 2009
Cloud Cover Overcast with periods of Mostly Cloudy
Events Lying Snow (at 09z): trace amount
Air Frost
Comments Rain or snow melt; Heath remains decent snow cover
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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