Daily Report for 6th May 2022

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.1 °C (+2.4) 03:49 9.6 °C (+2.1) 12.0 °C (+4.3), 2014 2.8 °C (-4.9), 2021
Maximum Temperature 22.8 °C (+6.2) 15:35 17.9 °C (+1.4) 24.6 °C (+8.0), 2018 8.7 °C (-7.9), 2012
Mean Temperature 15.9 °C (+4.3) 13.2 °C (+1.7) 17.3 °C, 2011 6.8 °C, 2012
Minimum Humidity 39% 14:00 56% 59%, 2017 32%, 2011
Maximum Humidity 91% 05:06 89% 91%, 2021 70%, 2011
Mean Humidity 71% 76% 73%, 2015 48%, 2011
Minimum Pressure 1025 hPa 16:44 1022 hPa 1026 hPa, 2020 1001 hPa, 2015
Maximum Pressure 1027 hPa 07:39 1025 hPa 1027 hPa, 2020 1007 hPa, 2014
Mean Pressure 1026 hPa 1023 hPa 1026 hPa, 2020 1004 hPa, 2015
Mean Wind Speed 3.3 mph (-1.4) 2.2 mph (-2.5) 11.4 mph, 2015 2.0 mph, 2016
Maximum Wind Speed 11.6 mph 14:48 9.6 mph 22.5 mph, 2015 8.7 mph, 2016
Maximum Gust 18.2 mph 15:04 14.0 mph 34.2 mph, 2015 13.1 mph, 2010
Mean Wind Direction WNW
Rainfall 0.0 mm 3.1 mm (35%) 12.9 mm, 2015
Maximum Hourly Rain n/a 7.5, 2015
Maximum 10-min Rain n/a 5, 2015
Maximum Rain Rate n/a 78, 2015
Minimum Dew Point 7.5 °C 12:28 6.8 °C 7.5 °C, 2022 -1.5 °C, 2021
Maximum Dew Point 12.4 °C 18:12 11.0 °C 12.4 °C, 2022 3.1 °C, 2012
Mean Dew Point 10.0 °C 9.0 °C 10.0 °C, 2022 1.9 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.1 °C 03:50 9.6 °C 12.4 °C, 2014 2.8 °C, 2021
Day Maximum (09-21) 22.8 °C 15:35 17.9 °C 24.6 °C, 2018 8.7 °C, 2012
Max 10m Temp Rise 0.6 °C 08:33 0.5 °C 1.3 °C, 2018 0.4 °C, 2012
Max 1hr Temp Rise 2.4 °C 08:52 1.9 °C 4.1 °C, 2018 1.2 °C, 2012
Max 1hr Hum Rise 12% 17:16 11% 23%, 2021 5%, 2011
Max 10m Temp Fall 0.7 °C 17:44 0.6 °C 1.5 °C, 2021 0.3 °C, 2017
Max 1hr Temp Fall 2.6 °C 17:57 2.1 °C 3.6 °C, 2021 1.1 °C, 2019
Max 1hr Hum Fall 14% 11:04 10% 21%, 2021 7%, 2017
Max 10m Wind Speed 8.8 mph 14:27 7.1 mph 18.0 mph, 2015 6.4 mph, 2016
Minimum Feels-like 10.7 °C 03:47 9.3 °C 12.0 °C, 2014 0.5 °C, 2020
Maximum Feels-like 24.5 °C 15:39 19.2 °C 26.0 °C, 2018 8.7 °C, 2012
Mean Feels-like 17.2 °C 14.0 °C 17.4 °C, 2011 5.4 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 12.7 °C (+3.8) 8.3 °C (-0.7) 16.8 °C (+7.9), 2018 4.6 °C (-4.3), 2012
Humidity Range 52% 32% 52%, 2022 22%, 2017
Pressure Range 2 hPa 3 hPa 9 hPa, 2015 2 hPa, 2020
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 10 [73%]19 hrs (55%) [23%] 13.7 [100%], 2018 0 [0%], 2012
Wet Hours 04 hrs (52%) [2.8%] 4, 2015 0, 2009
Cloud Cover am: Sunny
pm: Mostly Sunny transitioned to Overcast
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 15.5 °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.
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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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