Daily Report for 1st October 2010

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 12.9 °C (+2.8) 00:56 12.9 °C (+2.9) 15.6 °C (+5.5), 2023 7.2 °C (-2.9), 2018
Maximum Temperature 15.9 °C (-0.9) 21:29 15.9 °C (-0.8) 27.1 °C (+10.3), 2011 13.3 °C (-3.5), 2024
Mean Temperature 14.3 °C (+0.9) 14.3 °C (+1.1) 19.3 °C, 2011 11.1 °C, 2018
Minimum Humidity 83% 00:09 83% 85%, 2024 40%, 2011
Maximum Humidity 98% 21:19 98% 98%, 2010 82%, 2009
Mean Humidity 91% 91% 91%, 2024 66%, 2018
Minimum Pressure 998 hPa 18:18 998 hPa 1029 hPa, 2015 993 hPa, 2020
Maximum Pressure 1011 hPa 00:24 1011 hPa 1033 hPa, 2015 1001 hPa, 2020
Mean Pressure 1004 hPa 1004 hPa 1031 hPa, 2015 998 hPa, 2020
Mean Wind Speed 6.4 mph (+2.3) 6.4 mph (+2.3) 7.2 mph, 2017 1.2 mph, 2011
Maximum Wind Speed 16.5 mph 16.5 mph 17.6 mph, 2022 8.1 mph, 2011
Maximum Gust 29.1 mph 08:42 29.1 mph 29.7 mph, 2021 10.0 mph, 2011
Mean Wind Direction SSW
Rainfall 11.2 mm 11.2 mm (534%) 17.6 mm, 2019
Maximum Hourly Rain 3.0 mm 21:15 10.8 mm, 2019
Maximum 10-min Rain 1.4 mm 20:59 7.0 mm, 2019
Maximum Rain Rate 10 mm/h 18:03 92 mm/h, 2019
Minimum Dew Point 10.2 °C 00:09 10.2 °C 13.4 °C, 2023 2.7 °C, 2018
Maximum Dew Point 15.5 °C 21:20 15.5 °C 18.6 °C, 2023 6.4 °C, 2018
Mean Dew Point 12.8 °C 12.8 °C 16.1 °C, 2023 4.7 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 12.9 °C 12.9 °C 15.6 °C, 2023 7.2 °C, 2018
Day Maximum (09-21) * 14.8 °C * 14.8 °C 27.1 °C, 2011 13.3 °C, 2024
Max 10m Temp Rise 0.2 °C 08:50 0.2 °C 0.9 °C, 2011 0.2 °C, 2010
Max 1hr Temp Rise 0.6 °C 20:40 0.6 °C 4.4 °C, 2011 0.6 °C, 2010
Max 1hr Hum Rise 4% 12:18 4% 15%, 2019 3%, 2023
Max 10m Temp Fall 0.2 °C 23:47 0.2 °C 1.2 °C, 2019 0.2 °C, 2010
Max 1hr Temp Fall 0.7 °C 23:47 0.7 °C 3.4 °C, 2019 0.3 °C, 2017
Max 1hr Hum Fall 4% 08:50 4% 20%, 2014 3%, 2024
Max 10m Wind Speed 11.2 mph 08:58 11.2 mph 12.6 mph, 2021 5.9 mph, 2025
Minimum Feels-like 14.3 °C 00:36 14.3 °C 18.6 °C, 2023 4.5 °C, 2018
Maximum Feels-like 20.1 °C 21:10 20.1 °C 30.2 °C, 2011 15.1 °C, 2018
Mean Feels-like 17.0 °C 17.0 °C 23.2 °C, 2023 10.3 °C, 2018
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.0 °C (-3.7) 3.0 °C (-3.7) 14.8 °C (+8.1), 2011 1.9 °C (-4.8), 2024
Humidity Range 15% 15% 54%, 2011 11%, 2024
Pressure Range 13 hPa 13 hPa 16 hPa, 2022 2 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]0 hrs (0%) [0%] 10.3 [98%], 2011 0 [0%], 2010
Wet Hours 9
[Mean rain rate: 1.2 mm/h]		9 hrs (569%) [38%] 9, 2010 0, 2009
Cloud Cover Overcast
Events None
Comments 11-1830 Slight/Light Rain (12-13, 17-18 Moderate); 2230 Heavy Shower
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature @ Hampstead Heath 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 1st October 2010.
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