Daily Report for 21st January 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -1.1 °C (-3.4) 05:53 4.7 °C (+2.3) 7.1 °C (+4.8), 2012 -2.6 °C (-4.9), 2019
Maximum Temperature 6.3 °C (-0.7) 15:25 9.7 °C (+2.7) 12.3 °C (+5.3), 2012 1.4 °C (-5.6), 2013
Mean Temperature 2.1 °C (-2.0) 7.4 °C (+2.5) 10.0 °C, 2012 -0.0 °C, 2013
Minimum Humidity 83% 15:25 77% 91%, 2018 47%, 2017
Maximum Humidity 97% 09:26 93% 98%, 2013 80%, 2017
Mean Humidity 91% 86% 95%, 2018 66%, 2017
Minimum Pressure 1040 hPa 21:05 1017 hPa 1040 hPa, 2020 991 hPa, 2013
Maximum Pressure 1045 hPa 00:01 1029 hPa 1045 hPa, 2020 999 hPa, 2013
Mean Pressure 1042 hPa 1023 hPa 1042 hPa, 2020 994 hPa, 2013
Mean Wind Speed 1.6 mph (-3.6) 6.3 mph (+1.1) 8.3 mph, 2012 1.5 mph, 2017
Maximum Wind Speed 5.8 mph 13:29 16.3 mph 19.2 mph, 2012 5.8 mph, 2020
Maximum Gust 9.2 mph 09:00 27.1 mph 28.4 mph, 2012 8.1 mph, 2013
Mean Wind Direction W
Rainfall 0.0 mm 26.5 mm (71%) 12.3 mm, 2018
Maximum Hourly Rain n/a 3.1, 2018
Maximum 10-min Rain n/a 0.7, 2018
Maximum Rain Rate n/a 4.4, 2018
Minimum Dew Point -1.9 °C 05:53 2.8 °C 0.7 °C, 2014 -8.5 °C, 2017
Maximum Dew Point 3.6 °C 15:25 7.6 °C 9.3 °C, 2018 -1.9 °C, 2017
Mean Dew Point 0.8 °C 5.2 °C 4.8 °C, 2012 -5.1 °C, 2017
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -1.1 °C 05:50 5.6 °C 8.5 °C, 2012 -2.6 °C, 2019
Day Maximum (09-21) 6.3 °C 15:24 9.4 °C 12.3 °C, 2012 1.4 °C, 2013
Max 10m Temp Rise 0.8 °C 09:06 0.3 °C 0.8 °C, 2016 0.2 °C, 2011
Max 1hr Temp Rise 2.4 °C 09:42 1.1 °C 2.4 °C, 2020 0.4 °C, 2015
Max 1hr Hum Rise 6% 17:51 5% 7%, 2012 2%, 2014
Max 10m Temp Fall 0.5 °C 16:57 0.5 °C 0.5 °C, 2020 0.2 °C, 2010
Max 1hr Temp Fall 2.3 °C 17:32 1.3 °C 2.3 °C, 2020 0.5 °C, 2019
Max 1hr Hum Fall 6% 11:34 6% 22%, 2017 2%, 2015
Max 10m Wind Speed 4.4 mph 11:02 12.2 mph 11.8 mph, 2012 4.4 mph, 2020
Minimum Feels-like -4.1 °C 09:00 0.9 °C 4.4 °C, 2012 -4.5 °C, 2017
Maximum Feels-like 6.3 °C 15:04 10.3 °C 12.5 °C, 2012 1.3 °C, 2013
Mean Feels-like 1.2 °C 5.8 °C 9.3 °C, 2012 -1.1 °C, 2013
Air-frost Hrs 7 hrs 0.4 hrs 13 hrs, 2013 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.4 °C (+2.7) 5.0 °C (+0.4) 9.1 °C (+4.4), 2018 2.8 °C (-1.9), 2015
Humidity Range 14% 15% 44%, 2009 7%, 2018
Pressure Range 5 hPa 11 hPa 16 hPa, 2019 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6 [78%]41 hrs (134%) [27%] 7.7 [101%], 2017 0 [0%], 2015
Wet Hours 037 hrs (82%) [7.3%] 10, 2018 , 2009
Cloud Cover unknown
Events Air Frost
Comments blr
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 4.5 °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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