Daily Report for 16th February 2022

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.9 °C (+6.2) 00:42 5.3 °C (+2.4) 8.9 °C (+6.2), 2022 -2.1 °C (-4.8), 2016
Maximum Temperature 14.7 °C (+6.6) 12:12 10.6 °C (+2.7) 14.7 °C (+6.6), 2022 4.4 °C (-3.7), 2010
Mean Temperature 12.4 °C (+6.4) 8.2 °C (+2.6) 12.4 °C, 2022 3.0 °C, 2016
Minimum Humidity 74% 22:56 71% 94%, 2010 48%, 2013
Maximum Humidity 94% 02:22 90% 98%, 2010 83%, 2012
Mean Humidity 87% 82% 96%, 2010 66%, 2013
Minimum Pressure 994 hPa 17:09 1011 hPa 1028 hPa, 2017 991 hPa, 2010
Maximum Pressure 1001 hPa 00:03 1022 hPa 1035 hPa, 2016 998 hPa, 2010
Mean Pressure 997 hPa 1016 hPa 1032 hPa, 2016 994 hPa, 2010
Mean Wind Speed 12.7 mph (+7.6) 7.8 mph (+2.7) 12.7 mph, 2022 1.9 mph, 2013
Maximum Wind Speed 25.1 mph 17:44 17.2 mph 29.7 mph, 2020 6.7 mph, 2013
Maximum Gust 44.5 mph 18:35 29.3 mph 49.5 mph, 2020 8.7 mph, 2013
Mean Wind Direction W
Rainfall 1.9 mm 32.1 mm (125%) 27.0 mm, 2010
Maximum Hourly Rain 0.8 mm 01:29 3.6 mm, 2010
Maximum 10-min Rain 0.3 mm 01:29 2.2 mm, 2020
Maximum Rain Rate 1.1 mm/h 00:32 42 mm/h, 2020
Minimum Dew Point 6.7 °C 23:54 2.7 °C 6.7 °C, 2022 -4.0 °C, 2016
Maximum Dew Point 12.4 °C 16:04 7.7 °C 12.4 °C, 2022 2.7 °C, 2018
Mean Dew Point 10.3 °C 5.2 °C 10.3 °C, 2022 -1.2 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 8.9 °C 00:41 5.8 °C 10.3 °C, 2020 -2.1 °C, 2016
Day Maximum (09-21) 14.7 °C 12:13 10.4 °C 14.7 °C, 2022 4.4 °C, 2010
Max 10m Temp Rise 0.4 °C 11:10 0.4 °C 0.6 °C, 2009 0.2 °C, 2010
Max 1hr Temp Rise 1.5 °C 11:38 1.4 °C 2.4 °C, 2016 0.4 °C, 2021
Max 1hr Hum Rise 9% 13:48 6% 12%, 2018 2%, 2010
Max 10m Temp Fall 0.5 °C 13:37 0.6 °C 1.1 °C, 2009 0.2 °C, 2012
Max 1hr Temp Fall 1.4 °C 13:59 1.4 °C 2.4 °C, 2013 0.6 °C, 2017
Max 1hr Hum Fall 8% 19:31 7% 19%, 2014 2%, 2010
Max 10m Wind Speed 20.0 mph 18:42 13.5 mph 21.3 mph, 2020 5.2 mph, 2013
Minimum Feels-like 4.4 °C 01:27 1.1 °C 4.4 °C, 2022 -4.0 °C, 2016
Maximum Feels-like 16.7 °C 13:11 10.7 °C 16.7 °C, 2022 4.4 °C, 2010
Mean Feels-like 13.5 °C 6.2 °C 13.5 °C, 2022 1.1 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 4 hrs, 2016 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.8 °C (+0.4) 5.3 °C (+0.2) 9.1 °C (+3.7), 2016 2.5 °C (-2.9), 2021
Humidity Range 20% 19% 41%, 2018 4%, 2010
Pressure Range 6 hPa 10 hPa 15 hPa, 2020 1 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [11%]35 hrs (81%) [25%] 8.5 [95%], 2016 0 [0%], 2010
Wet Hours 4
[Mean rain rate: 0.5 mm/h]
41 hrs (138%) [11%] 17, 2010 , 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 6.0 °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 are initially pulled from the official weather station at Heathrow, and later adjusted by hand to reflect local conditions based on webcam observations. Wet hrs are dervied algorithmically from rainfall data, though may be adjusted manually. Cloud cover and Events are manually reported, often with multi-week delays.
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Webcam Summary of Cloud Conditions

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