Daily Report for 26th April 2022

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.5 °C (-2.1) 06:12 6.2 °C (+0.2) 9.3 °C (+2.7), 2012 2.1 °C (-4.5), 2016
Maximum Temperature 15.0 °C (-0.4) 14:11 15.2 °C (+1.0) 20.8 °C (+5.4), 2020 9.5 °C (-5.9), 2016
Mean Temperature 9.9 °C (-1.3) 10.6 °C (+0.6) 13.1 °C, 2020 5.3 °C, 2017
Minimum Humidity 45% 13:53 50% 65%, 2015 32%, 2009
Maximum Humidity 91% 06:20 88% 96%, 2014 78%, 2017
Mean Humidity 69% 71% 82%, 2015 59%, 2009
Minimum Pressure 1020 hPa 00:13 1012 hPa 1024 hPa, 2011 984 hPa, 2012
Maximum Pressure 1027 hPa 23:56 1019 hPa 1028 hPa, 2021 1003 hPa, 2012
Mean Pressure 1023 hPa 1015 hPa 1025 hPa, 2010 994 hPa, 2012
Mean Wind Speed 3.2 mph (-1.7) 5.0 mph (+0.1) 10.7 mph, 2012 2.5 mph, 2020
Maximum Wind Speed 10.7 mph 15:00 13.5 mph 25.1 mph, 2012 8.6 mph, 2020
Maximum Gust 18.2 mph 15:01 22.4 mph 33.4 mph, 2012 13.5 mph, 2015
Mean Wind Direction NE
Rainfall 0.0 mm 17.8 mm (49%) 3.9 mm, 2013
Maximum Hourly Rain n/a 2.6, 2015
Maximum 10-min Rain n/a 0.8, 2012
Maximum Rain Rate n/a 24, 2017
Minimum Dew Point 2.5 °C 13:53 2.7 °C 6.4 °C, 2010 -4.8 °C, 2016
Maximum Dew Point 5.9 °C 21:29 7.8 °C 11.7 °C, 2010 1.5 °C, 2016
Mean Dew Point 4.1 °C 5.2 °C 8.2 °C, 2010 -1.7 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 4.5 °C 06:14 6.2 °C 9.3 °C, 2012 2.1 °C, 2016
Day Maximum (09-21) 15.0 °C 14:11 15.2 °C 20.8 °C, 2020 9.5 °C, 2016
Max 10m Temp Rise 0.7 °C 13:28 0.7 °C 0.9 °C, 2017 0.3 °C, 2015
Max 1hr Temp Rise 2.3 °C 07:36 2.4 °C 4.7 °C, 2020 1.1 °C, 2015
Max 1hr Hum Rise 15% 22:09 11% 26%, 2018 5%, 2011
Max 10m Temp Fall 0.7 °C 14:21 0.8 °C 1.4 °C, 2017 0.4 °C, 2010
Max 1hr Temp Fall 1.3 °C 22:14 1.8 °C 2.8 °C, 2019 1.0 °C, 2012
Max 1hr Hum Fall 11% 07:40 11% 28%, 2018 7%, 2017
Max 10m Wind Speed 7.4 mph 18:54 10.3 mph 16.2 mph, 2012 6.1 mph, 2011
Minimum Feels-like 2.3 °C 06:43 3.6 °C 6.1 °C, 2010 -3.2 °C, 2016
Maximum Feels-like 15.0 °C 14:11 15.7 °C 20.8 °C, 2020 8.0 °C, 2016
Mean Feels-like 9.6 °C 10.1 °C 13.1 °C, 2020 2.3 °C, 2016
Air-frost Hrs 0 hrs 0.2 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 10.5 °C (+1.7) 9.1 °C (+0.8) 17.5 °C (+8.7), 2020 5.1 °C (-3.7), 2012
Humidity Range 46% 38% 61%, 2020 19%, 2011
Pressure Range 6 hPa 7 hPa 19 hPa, 2012 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8 [61%]138 hrs (100%) [43%] 13 [99%], 2020 0 [0%], 2015
Wet Hours 018 hrs (45%) [2.9%] 3.5, 2013 0, 2009
Cloud Cover unknown
Events None
Comments blr
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 14.0 °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.
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