Daily Report for 24th February 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 2.5 °C (-0.6) 07:11 4.3 °C (+1.4) 11.1 °C (+8.0), 2021 -2.1 °C (-5.2), 2016
Maximum Temperature 14.7 °C (+5.9) 15:54 10.6 °C (+2.4) 15.8 °C (+7.0), 2021 2.0 °C (-6.8), 2013
Mean Temperature 8.2 °C (+2.6) 7.3 °C (+1.9) 13.1 °C, 2021 1.0 °C, 2013
Minimum Humidity 46% 14:06 70% 88%, 2010 41%, 2015
Maximum Humidity 95% 08:15 93% 98%, 2010 70%, 2017
Mean Humidity 76% 84% 96%, 2010 60%, 2017
Minimum Pressure 1034 hPa 01:53 1015 hPa 1034 hPa, 2019 986 hPa, 2010
Maximum Pressure 1038 hPa 22:32 1023 hPa 1038 hPa, 2019 993 hPa, 2010
Mean Pressure 1036 hPa 1019 hPa 1036 hPa, 2019 990 hPa, 2010
Mean Wind Speed 1.4 mph (-3.7) 5.3 mph (+0.2) 9.6 mph, 2021 0.7 mph, 2016
Maximum Wind Speed 8.6 mph 12:46 14.5 mph 23.5 mph, 2022 5.2 mph, 2016
Maximum Gust 11.5 mph 12:46 22.2 mph 38.0 mph, 2025 8.4 mph, 2016
Mean Wind Direction E
Rainfall 0.0 mm 35.5 mm (92%) 15.8 mm, 2025
Maximum Hourly Rain n/a 3.8, 2025
Maximum 10-min Rain n/a 1.5, 2022
Maximum Rain Rate n/a 24, 2025
Minimum Dew Point 1.3 °C 07:11 2.4 °C 6.9 °C, 2021 -6.3 °C, 2016
Maximum Dew Point 6.5 °C 10:21 6.7 °C 10.9 °C, 2021 -2.6 °C, 2013
Mean Dew Point 3.7 °C 4.6 °C 8.8 °C, 2021 -3.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 2.5 °C 07:12 4.5 °C 11.1 °C, 2021 -2.1 °C, 2016
Day Maximum (09-21) 14.7 °C 15:48 10.5 °C 15.8 °C, 2021 2.0 °C, 2013
Max 10m Temp Rise 0.7 °C 08:14 0.4 °C 2.9 °C, 2025 0.2 °C, 2013
Max 1hr Temp Rise 2.8 °C 08:39 1.6 °C 3.4 °C, 2025 0.4 °C, 2013
Max 1hr Hum Rise 12% 18:03 6% 13%, 2020 2%, 2009
Max 10m Temp Fall 0.5 °C 18:03 0.4 °C 1.5 °C, 2025 0.1 °C, 2013
Max 1hr Temp Fall 2.1 °C 21:07 1.2 °C 2.7 °C, 2023 0.3 °C, 2013
Max 1hr Hum Fall 17% 11:29 8% 19%, 2016 5%, 2009
Max 10m Wind Speed 6.4 mph 12:53 10.5 mph 16.0 mph, 2020 3.4 mph, 2016
Minimum Feels-like 2.4 °C 07:58 0.6 °C 11.3 °C, 2021 -7.0 °C, 2018
Maximum Feels-like 14.7 °C 15:30 10.5 °C 17.5 °C, 2021 -0.4 °C, 2013
Mean Feels-like 8.1 °C 5.4 °C 13.9 °C, 2021 -2.9 °C, 2013
Air-frost Hrs 0 hrs 0.3 hrs 10 hrs, 2016 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 12.2 °C (+6.5) 6.3 °C (+1.1) 12.2 °C (+6.5), 2019 1.7 °C (-4.0), 2013
Humidity Range 49% 23% 49%, 2019 10%, 2010
Pressure Range 3 hPa 8 hPa 22 hPa, 2015 2 hPa, 2021
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9.4 [100%]95 hrs (143%) [45%] 9.4 [100%], 2018 0 [0%], 2009
Wet Hours 052 hrs (117%) [9%] 11, 2025 , 2009
Cloud Cover Sunny
Events Maximum possible sunshine
Comments -
Extra Comments
Issues 16-1930 webcam loss due to out-of-disk errors
Observer Absent? Yes - observations may be unreliable
Pond Temperature @ Hampstead Heath n/a
Notes
Detailed daily weather report for Hampstead nw3 in London on 24th February 2019.
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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Wind rose