Daily Report for 22nd April 2022

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.8 °C (+1.5) 04:40 6.0 °C (+0.2) 12.1 °C (+5.8), 2018 2.3 °C (-4.0), 2010
Maximum Temperature 15.3 °C (+0.4) 13:28 15.1 °C (+1.1) 25.6 °C (+10.7), 2011 11.0 °C (-3.9), 2016
Mean Temperature 11.4 °C (+1.0) 10.5 °C (+0.7) 18.0 °C, 2011 7.8 °C, 2021
Minimum Humidity 58% 15:07 50% 60%, 2016 29%, 2019
Maximum Humidity 84% 07:10 88% 95%, 2014 75%, 2011
Mean Humidity 73% 71% 82%, 2014 50%, 2011
Minimum Pressure 1007 hPa 23:56 1012 hPa 1026 hPa, 2021 1002 hPa, 2019
Maximum Pressure 1012 hPa 00:00 1019 hPa 1033 hPa, 2015 1004 hPa, 2012
Mean Pressure 1009 hPa 1015 hPa 1030 hPa, 2015 1004 hPa, 2012
Mean Wind Speed 7.1 mph (+2.2) 4.9 mph (-0.0) 7.1 mph, 2022 2.7 mph, 2011
Maximum Wind Speed 14.9 mph 16:14 13.5 mph 18.5 mph, 2012 8.2 mph, 2010
Maximum Gust 25.1 mph 13:51 21.9 mph 25.1 mph, 2012 11.5 mph, 2017
Mean Wind Direction ENE
Rainfall 0.0 mm 14.9 mm (48%) 5.5 mm, 2016
Maximum Hourly Rain n/a 2.6, 2018
Maximum 10-min Rain n/a 1.3, 2018
Maximum Rain Rate n/a 13, 2018
Minimum Dew Point 4.6 °C 02:03 2.5 °C 6.7 °C, 2014 -3.6 °C, 2010
Maximum Dew Point 8.6 °C 13:25 7.6 °C 14.6 °C, 2018 2.4 °C, 2010
Mean Dew Point 6.7 °C 5.1 °C 11.8 °C, 2018 0.2 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 7.8 °C 04:41 6.1 °C 13.2 °C, 2018 2.3 °C, 2010
Day Maximum (09-21) 15.3 °C 13:28 15.1 °C 25.6 °C, 2011 11.0 °C, 2016
Max 10m Temp Rise 0.8 °C 08:52 0.7 °C 1.0 °C, 2019 0.2 °C, 2016
Max 1hr Temp Rise 1.9 °C 08:56 2.4 °C 3.6 °C, 2019 0.9 °C, 2016
Max 1hr Hum Rise 7% 22:15 10% 28%, 2012 7%, 2010
Max 10m Temp Fall 0.7 °C 13:38 0.7 °C 1.1 °C, 2012 0.3 °C, 2013
Max 1hr Temp Fall 1.3 °C 20:13 1.8 °C 4.3 °C, 2012 1.1 °C, 2013
Max 1hr Hum Fall 9% 12:26 11% 17%, 2014 3%, 2016
Max 10m Wind Speed 11.7 mph 14:26 10.4 mph 13.6 mph, 2018 6.1 mph, 2021
Minimum Feels-like 4.5 °C 04:47 3.6 °C 12.1 °C, 2018 -0.4 °C, 2021
Maximum Feels-like 15.8 °C 13:28 15.7 °C 25.8 °C, 2018 11.0 °C, 2016
Mean Feels-like 10.7 °C 10.1 °C 20.1 °C, 2018 7.0 °C, 2021
Air-frost Hrs 0 hrs 0.3 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.5 °C (-1.1) 9.1 °C (+0.9) 16.4 °C (+7.8), 2019 5.2 °C (-3.4), 2016
Humidity Range 26% 38% 50%, 2012 26%, 2022
Pressure Range 6 hPa 7 hPa 13 hPa, 2019 1 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [8%]115 hrs (99%) [42%] 13 [101%], 2020 0 [0%], 2016
Wet Hours 016 hrs (47%) [3%] 10, 2016 0, 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 12.5 °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