Daily Report for 24th June 2024

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 15.6 °C (+2.9) 04:51 10.3 °C (-1.6) 17.4 °C (+4.7), 2017 8.9 °C (-3.8), 2021
Maximum Temperature 27.3 °C (+5.5) 16:38 20.0 °C (-0.8) 30.6 °C (+8.8), 2020 16.6 °C (-5.2), 2013
Mean Temperature 22.2 °C (+4.2) 15.5 °C (-1.2) 23.7 °C, 2020 13.2 °C, 2013
Minimum Humidity 55% 16:42 55% 63%, 2022 33%, 2009
Maximum Humidity 93% 06:12 90% 95%, 2012 68%, 2010
Mean Humidity 71% 73% 78%, 2021 53%, 2010
Minimum Pressure 1018 hPa 18:24 1013 hPa 1025 hPa, 2018 1004 hPa, 2022
Maximum Pressure 1022 hPa 01:35 1019 hPa 1027 hPa, 2018 1009 hPa, 2022
Mean Pressure 1020 hPa 1016 hPa 1026 hPa, 2018 1006 hPa, 2022
Mean Wind Speed 2.1 mph (-2.3) 4.5 mph (+0.1) 7.1 mph, 2022 2.0 mph, 2021
Maximum Wind Speed 7.5 mph 18:48 12.5 mph 20.6 mph, 2016 7.5 mph, 2024
Maximum Gust 11.5 mph 17:53 19.5 mph 29.0 mph, 2016 11.4 mph, 2021
Mean Wind Direction SW
Rainfall 0.0 mm 11.8 mm (31%) 10.3 mm, 2012
Maximum Hourly Rain n/a 2.6, 2012
Maximum 10-min Rain n/a 1.7, 2012
Maximum Rain Rate n/a 50, 2012
Minimum Dew Point 13.9 °C 04:32 7.9 °C 15.0 °C, 2019 4.4 °C, 2013
Maximum Dew Point 18.5 °C 12:07 12.9 °C 19.1 °C, 2023 7.8 °C, 2013
Mean Dew Point 16.5 °C 10.5 °C 17.0 °C, 2023 5.9 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 15.6 °C 04:51 10.5 °C 17.4 °C, 2017 8.9 °C, 2021
Day Maximum (09-21) 27.3 °C 16:39 20.0 °C 30.6 °C, 2020 16.6 °C, 2013
Max 10m Temp Rise 0.6 °C 07:16 0.7 °C 1.1 °C, 2009 0.4 °C, 2013
Max 1hr Temp Rise 2.9 °C 07:13 2.6 °C 3.4 °C, 2009 1.1 °C, 2013
Max 1hr Hum Rise 7% 21:20 11% 25%, 2014 4%, 2023
Max 10m Temp Fall 0.5 °C 16:55 0.7 °C 1.4 °C, 2012 0.3 °C, 2010
Max 1hr Temp Fall 1.6 °C 03:41 2.1 °C 3.6 °C, 2014 1.1 °C, 2017
Max 1hr Hum Fall 10% 07:14 11% 19%, 2012 7%, 2013
Max 10m Wind Speed 5.2 mph 17:31 9.0 mph 15.8 mph, 2016 5.2 mph, 2024
Minimum Feels-like 19.0 °C 04:38 10.3 °C 21.3 °C, 2019 9.1 °C, 2021
Maximum Feels-like 33.1 °C 16:35 22.2 °C 35.0 °C, 2020 16.6 °C, 2013
Mean Feels-like 27.2 °C 17.1 °C 28.0 °C, 2023 13.3 °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 11.7 °C (+2.7) 9.8 °C (+0.8) 14.9 °C (+5.9), 2020 5.5 °C (-3.6), 2017
Humidity Range 38% 35% 52%, 2012 21%, 2017
Pressure Range 4 hPa 6 hPa 10 hPa, 2012 2 hPa, 2015
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 8 [53%]155 hrs (100%) [43%] 15.2 [100%], 2020 0.2 [1%], 2017
Wet Hours 016 hrs (54%) [2.8%] 7, 2012 0, 2009
Cloud Cover unknown
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 20.5 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 24th June 2024.
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 derived based on analysis of webcam observations, but may use data from our closest site, Heathrow, when needed.
Wet hrs are dervied algorithmically from rainfall data, though may be adjusted manually.
Rainfall totals may be manually adjusted after the fact to correct delayed or erroneous data.
Cloud cover and Events are manually reported, often with multi-week delays.
Data is generally reliable and accurate but should always be viewed with some quantity of salt to hand.
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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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