Daily Report for 10th July 2024

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 15.2 °C (+1.2) 05:54 12.5 °C (-1.2) 17.8 °C (+3.8), 2010 10.4 °C (-3.6), 2009
Maximum Temperature 21.3 °C (-1.8) 15:49 19.3 °C (-3.5) 30.9 °C (+7.8), 2010 17.3 °C (-5.8), 2014
Mean Temperature 17.8 °C (-0.3) 15.9 °C (-2.3) 23.4 °C, 2010 15.0 °C, 2020
Minimum Humidity 67% 20:42 66% 70%, 2021 24%, 2015
Maximum Humidity 93% 01:03 92% 94%, 2020 69%, 2015
Mean Humidity 80% 81% 81%, 2012 44%, 2015
Minimum Pressure 1011 hPa 02:05 1009 hPa 1025 hPa, 2022 1005 hPa, 2017
Maximum Pressure 1017 hPa 23:53 1016 hPa 1031 hPa, 2022 1010 hPa, 2017
Mean Pressure 1014 hPa 1012 hPa 1028 hPa, 2022 1008 hPa, 2017
Mean Wind Speed 6.2 mph (+1.9) 3.9 mph (-0.4) 12.4 mph, 2016 0.4 mph, 2021
Maximum Wind Speed 14.2 mph 09:19 11.7 mph 27.1 mph, 2016 5.4 mph, 2021
Maximum Gust 18.7 mph 12:39 17.4 mph 43.5 mph, 2016 5.7 mph, 2021
Mean Wind Direction WSW
Rainfall 0.0 mm 80.1 mm (540%) 4.0 mm, 2012
Maximum Hourly Rain n/a 1.9, 2011
Maximum 10-min Rain n/a 1.5, 2012
Maximum Rain Rate n/a 20, 2012
Minimum Dew Point 11.9 °C 21:58 9.7 °C 13.1 °C, 2023 2.5 °C, 2015
Maximum Dew Point 15.8 °C 00:02 15.0 °C 17.4 °C, 2010 10.9 °C, 2015
Mean Dew Point 14.3 °C 12.4 °C 14.5 °C, 2019 7.0 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 15.2 °C 05:54 12.7 °C 17.8 °C, 2010 10.4 °C, 2009
Day Maximum (09-21) 21.3 °C 15:49 19.3 °C 30.9 °C, 2010 17.3 °C, 2014
Max 10m Temp Rise 0.6 °C 15:29 0.6 °C 0.8 °C, 2020 0.2 °C, 2014
Max 1hr Temp Rise 1.6 °C 14:34 2.1 °C 2.8 °C, 2013 0.5 °C, 2014
Max 1hr Hum Rise 6% 21:42 10% 17%, 2011 4%, 2019
Max 10m Temp Fall 0.5 °C 18:48 0.8 °C 0.9 °C, 2012 0.3 °C, 2014
Max 1hr Temp Fall 1.9 °C 21:17 2.0 °C 4.0 °C, 2022 1.1 °C, 2014
Max 1hr Hum Fall 7% 14:28 11% 15%, 2016 5%, 2021
Max 10m Wind Speed 10.4 mph 13:48 8.6 mph 20.8 mph, 2016 3.2 mph, 2021
Minimum Feels-like 18.2 °C 06:08 14.1 °C 21.1 °C, 2010 11.3 °C, 2020
Maximum Feels-like 25.5 °C 15:44 22.7 °C 34.8 °C, 2010 19.7 °C, 2020
Mean Feels-like 21.4 °C 18.4 °C 27.0 °C, 2010 16.5 °C, 2020
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.1 °C (-2.9) 6.8 °C (-2.3) 14.9 °C (+5.9), 2022 3.3 °C (-5.7), 2014
Humidity Range 26% 26% 51%, 2022 20%, 2021
Pressure Range 6 hPa 6 hPa 11 hPa, 2020 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.5 [10%]30 hrs (46%) [20%] 14 [94%], 2022 0.3 [2%], 2021
Wet Hours 041 hrs (374%) [17%] 2, 2012 0, 2009
Cloud Cover unknown
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 18.5 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 10th July 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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