Daily Report for 5th March 2024

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.6 °C (+1.0) 23:50 2.5 °C (-1.0) 5.6 °C (+2.0), 2017 -2.6 °C (-6.2), 2010
Maximum Temperature 10.2 °C (+0.2) 14:45 9.5 °C (-0.3) 15.3 °C (+5.3), 2013 4.4 °C (-5.6), 2023
Mean Temperature 7.5 °C (+0.6) 5.7 °C (-0.7) 8.3 °C, 2013 2.9 °C, 2016
Minimum Humidity 77% 14:45 68% 90%, 2020 41%, 2012
Maximum Humidity 94% 08:45 95% 96%, 2014 78%, 2015
Mean Humidity 88% 85% 92%, 2020 62%, 2012
Minimum Pressure 1010 hPa 00:02 1000 hPa 1036 hPa, 2015 982 hPa, 2009
Maximum Pressure 1020 hPa 23:43 1008 hPa 1040 hPa, 2015 991 hPa, 2018
Mean Pressure 1014 hPa 1003 hPa 1038 hPa, 2015 989 hPa, 2018
Mean Wind Speed 3.0 mph (-2.2) 4.5 mph (-0.7) 10.0 mph, 2012 2.6 mph, 2013
Maximum Wind Speed 8.0 mph 00:42 13.4 mph 19.2 mph, 2012 8.0 mph, 2024
Maximum Gust 13.0 mph 00:03 22.2 mph 30.1 mph, 2012 12.3 mph, 2013
Mean Wind Direction ENE
Rainfall 0.5 mm 15.6 mm (248%) 12.4 mm, 2020
Maximum Hourly Rain 0.5 mm 16:04 8.5 mm, 2017
Maximum 10-min Rain 0.3 mm 15:46 2.6 mm, 2017
Maximum Rain Rate 0.8 mm/h 16:04 36 mm/h, 2017
Minimum Dew Point 3.2 °C 00:08 1.2 °C 3.8 °C, 2018 -5.6 °C, 2010
Maximum Dew Point 6.9 °C 09:45 5.5 °C 8.0 °C, 2019 0.8 °C, 2021
Mean Dew Point 5.6 °C 3.4 °C 5.6 °C, 2024 -2.1 °C, 2010
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 5.0 °C * 03:45 2.6 °C 6.1 °C, 2017 -2.6 °C, 2010
Day Maximum (09-21) 10.2 °C 14:45 9.5 °C 15.3 °C, 2013 4.4 °C, 2023
Max 10m Temp Rise 0.5 °C 14:16 0.5 °C 1.1 °C, 2014 0.1 °C, 2020
Max 1hr Temp Rise 1.1 °C 14:16 1.5 °C 4.3 °C, 2014 0.2 °C, 2020
Max 1hr Hum Rise 5% 02:16 9% 11%, 2019 2%, 2020
Max 10m Temp Fall 0.5 °C 22:16 0.5 °C 0.8 °C, 2017 0.2 °C, 2010
Max 1hr Temp Fall 1.0 °C 22:16 1.6 °C 2.3 °C, 2025 0.3 °C, 2020
Max 1hr Hum Fall 7% 14:16 10% 15%, 2017 2%, 2020
Max 10m Wind Speed 5.1 mph 16:57 9.9 mph 15.0 mph, 2017 5.1 mph, 2024
Minimum Feels-like 3.6 °C 00:32 0.2 °C 3.6 °C, 2024 -5.6 °C, 2010
Maximum Feels-like 10.1 °C 14:16 8.9 °C 15.3 °C, 2013 3.5 °C, 2016
Mean Feels-like 7.3 °C 4.2 °C 8.0 °C, 2013 -0.6 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 9 hrs, 2010 0 hrs, 2011
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.6 °C (-0.8) 7.0 °C (+0.7) 13.4 °C (+7.0), 2013 1.1 °C (-5.3), 2020
Humidity Range 17% 27% 46%, 2014 4%, 2020
Pressure Range 10 hPa 9 hPa 19 hPa, 2009 3 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2 [20%]17 hrs (100%) [34%] 10 [100%], 2025 0 [0%], 2020
Wet Hours 1
[Mean rain rate: 0.5 mm/h]		14 hrs (164%) [12%] 12, 2020 , 2009
Cloud Cover unknown
Events None
Comments -
Extra Comments
Issues internet outage; data recovered from logs
Observer Absent? Yes - observations may be unreliable
Pond Temperature @ Hampstead Heath 7.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 5th March 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

daycamsumFull resolution individual images at up-to 5 minute intervals

Wind rose