Daily Report for 24th February 2022

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.4 °C (+0.3) 23:32 5.1 °C (+2.2) 11.1 °C (+8.0), 2021 -2.1 °C (-5.2), 2016
Maximum Temperature 8.9 °C (+0.1) 05:27 10.7 °C (+2.6) 15.8 °C (+7.0), 2021 2.0 °C (-6.8), 2013
Mean Temperature 6.3 °C (+0.2) 8.1 °C (+2.4) 13.1 °C, 2021 1.0 °C, 2013
Minimum Humidity 54% 17:02 68% 88%, 2010 41%, 2015
Maximum Humidity 90% 06:33 90% 98%, 2010 70%, 2017
Mean Humidity 77% 80% 96%, 2010 60%, 2017
Minimum Pressure 1006 hPa 08:00 1009 hPa 1034 hPa, 2019 986 hPa, 2010
Maximum Pressure 1019 hPa 23:51 1020 hPa 1038 hPa, 2019 993 hPa, 2010
Mean Pressure 1012 hPa 1015 hPa 1036 hPa, 2019 990 hPa, 2010
Mean Wind Speed 9.2 mph (+4.1) 8.6 mph (+3.5) 9.6 mph, 2021 0.7 mph, 2016
Maximum Wind Speed 23.5 mph 08:23 20.1 mph 23.5 mph, 2022 5.2 mph, 2016
Maximum Gust 31.9 mph 08:32 32.8 mph 33.4 mph, 2020 8.4 mph, 2016
Mean Wind Direction W
Rainfall 5.3 mm 49.8 mm (129%) 6.1 mm, 2020
Maximum Hourly Rain 2.9 mm 07:16 2.9 mm, 2022
Maximum 10-min Rain 1.5 mm 06:56 1.5 mm, 2022
Maximum Rain Rate 14 mm/h 06:47 18 mm/h, 2020
Minimum Dew Point -2.7 °C 17:02 1.9 °C 6.9 °C, 2021 -6.3 °C, 2016
Maximum Dew Point 6.7 °C 06:35 7.7 °C 10.9 °C, 2021 -2.6 °C, 2013
Mean Dew Point 2.5 °C 4.9 °C 8.8 °C, 2021 -3.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 6.8 °C * 08:54 5.7 °C 11.1 °C, 2021 -2.1 °C, 2016
Day Maximum (09-21) * 7.5 °C * 13:15 10.5 °C 15.8 °C, 2021 2.0 °C, 2013
Max 10m Temp Rise 0.3 °C 11:15 0.4 °C 0.7 °C, 2014 0.2 °C, 2013
Max 1hr Temp Rise 1.4 °C 11:54 1.5 °C 2.8 °C, 2016 0.4 °C, 2013
Max 1hr Hum Rise 10% 18:02 7% 13%, 2020 2%, 2009
Max 10m Temp Fall 1.0 °C 09:11 0.7 °C 1.0 °C, 2022 0.1 °C, 2013
Max 1hr Temp Fall 2.1 °C 09:50 1.5 °C 2.2 °C, 2016 0.3 °C, 2013
Max 1hr Hum Fall 16% 17:02 9% 19%, 2016 5%, 2009
Max 10m Wind Speed 15.8 mph 14:13 15.3 mph 16.0 mph, 2020 3.4 mph, 2016
Minimum Feels-like -3.3 °C 23:23 0.4 °C 11.3 °C, 2021 -7.0 °C, 2018
Maximum Feels-like 6.9 °C 04:36 10.7 °C 17.5 °C, 2021 -0.4 °C, 2013
Mean Feels-like 2.4 °C 5.9 °C 13.9 °C, 2021 -2.9 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 10 hrs, 2016 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.5 °C (-0.2) 5.7 °C (+0.4) 12.2 °C (+6.5), 2019 1.7 °C (-4.0), 2013
Humidity Range 36% 21% 49%, 2019 10%, 2010
Pressure Range 12 hPa 12 hPa 22 hPa, 2015 2 hPa, 2021
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [42%]54 hrs (81%) [25%] 9.4 [100%], 2018 0 [0%], 2009
Wet Hours 4
[Mean rain rate: 1.3 mm/h]
57 hrs (128%) [9.9%] 8, 2020 , 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 6.5 °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 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.
View monthly summary

Daily Graph of Conditions

day graph

Webcam Summary of Cloud Conditions

daycamsumFull resolution individual images at up-to 5 minute intervals

Wind rose