Daily Report for 25th June 2022

<<Previous Day
Reset
Next Day>>
Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 13.2 °C (+0.5) 05:15 11.7 °C (-0.1) 17.8 °C (+5.1), 2020 8.3 °C (-4.4), 2013
Maximum Temperature 20.6 °C (-1.2) 15:05 22.7 °C (+1.9) 31.3 °C (+9.5), 2020 20.2 °C (-1.6), 2013
Mean Temperature 16.8 °C (-0.3) 17.4 °C (+0.9) 24.8 °C, 2020 15.0 °C, 2013
Minimum Humidity 49% 15:04 51% 78%, 2019 25%, 2018
Maximum Humidity 88% 00:06 89% 95%, 2011 69%, 2010
Mean Humidity 71% 70% 88%, 2019 51%, 2018
Minimum Pressure 1005 hPa 00:02 1016 hPa 1026 hPa, 2013 1005 hPa, 2022
Maximum Pressure 1011 hPa 23:38 1020 hPa 1030 hPa, 2013 1011 hPa, 2022
Mean Pressure 1009 hPa 1018 hPa 1029 hPa, 2013 1009 hPa, 2022
Mean Wind Speed 6.9 mph (+2.5) 3.6 mph (-0.8) 6.9 mph, 2022 1.9 mph, 2018
Maximum Wind Speed 14.6 mph 01:23 11.7 mph 16.9 mph, 2016 7.0 mph, 2018
Maximum Gust 26.2 mph 01:22 19.1 mph 26.2 mph, 2022 10.9 mph, 2013
Mean Wind Direction SW
Rainfall 0.0 mm 17.9 mm (46%) 6.8 mm, 2019
Maximum Hourly Rain n/a 4.4, 2019
Maximum 10-min Rain n/a 1.4, 2016
Maximum Rain Rate n/a 36, 2016
Minimum Dew Point 9.0 °C 13:28 9.0 °C 15.0 °C, 2019 3.6 °C, 2013
Maximum Dew Point 14.2 °C 00:00 13.7 °C 20.2 °C, 2019 8.7 °C, 2013
Mean Dew Point 11.1 °C 11.5 °C 17.5 °C, 2019 5.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 13.2 °C 05:18 12.0 °C 18.0 °C, 2019 8.3 °C, 2013
Day Maximum (09-21) 20.6 °C 15:06 22.7 °C 31.3 °C, 2020 20.2 °C, 2013
Max 10m Temp Rise 0.7 °C 10:07 0.7 °C 0.8 °C, 2012 0.4 °C, 2011
Max 1hr Temp Rise 2.1 °C 08:47 2.6 °C 3.0 °C, 2009 1.4 °C, 2011
Max 1hr Hum Rise 9% 21:20 10% 21%, 2016 5%, 2011
Max 10m Temp Fall 0.6 °C 15:18 0.6 °C 1.1 °C, 2016 0.4 °C, 2014
Max 1hr Temp Fall 1.3 °C 19:18 2.0 °C 3.1 °C, 2016 1.3 °C, 2019
Max 1hr Hum Fall 13% 10:44 12% 16%, 2009 6%, 2010
Max 10m Wind Speed 12.2 mph 13:14 8.9 mph 13.4 mph, 2016 5.0 mph, 2010
Minimum Feels-like 15.0 °C 04:55 12.5 °C 21.5 °C, 2020 7.2 °C, 2013
Maximum Feels-like 22.1 °C 15:07 25.5 °C 36.6 °C, 2020 20.2 °C, 2013
Mean Feels-like 18.6 °C 19.5 °C 28.8 °C, 2020 15.0 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.4 °C (-1.6) 11.0 °C (+2.0) 16.7 °C (+7.7), 2018 6.7 °C (-2.4), 2019
Humidity Range 39% 39% 61%, 2018 17%, 2019
Pressure Range 6 hPa 4 hPa 9 hPa, 2019 2 hPa, 2018
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 7 [46%]184 hrs (114%) [49%] 15.2 [100%], 2018 0.4 [3%], 2019
Wet Hours 021 hrs (69%) [3.5%] 6, 2019 0, 2009
Cloud Cover unknown
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 20.0 °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