Daily Report for 2nd November 2019

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.6 °C (+2.7) 23:59 9.1 °C (+2.2) 11.3 °C (+4.4), 2010 1.1 °C (-5.8), 2018
Maximum Temperature 14.7 °C (+2.3) 00:02 14.8 °C (+2.5) 16.9 °C (+4.5), 2020 9.5 °C (-2.9), 2016
Mean Temperature 11.7 °C (+2.5) 12.2 °C (+2.4) 13.9 °C, 2014 4.9 °C, 2018
Minimum Humidity 77% 05:38 82% 95%, 2015 52%, 2012
Maximum Humidity 93% 11:19 95% 97%, 2010 82%, 2016
Mean Humidity 84% 89% 96%, 2015 73%, 2016
Minimum Pressure 977 hPa 11:26 982 hPa 1030 hPa, 2024 956 hPa, 2023
Maximum Pressure 988 hPa 00:17 1001 hPa 1032 hPa, 2024 978 hPa, 2023
Mean Pressure 981 hPa 990 hPa 1031 hPa, 2024 968 hPa, 2023
Mean Wind Speed 10.1 mph (+5.5) 7.1 mph (+2.5) 10.1 mph, 2019 0.5 mph, 2021
Maximum Wind Speed 21.5 mph 08:58 17.1 mph 24.3 mph, 2023 4.0 mph, 2017
Maximum Gust 36.9 mph 10:40 28.8 mph 39.2 mph, 2023 8.1 mph, 2017
Mean Wind Direction SW
Rainfall 4.0 mm 7.7 mm (172%) 23.5 mm, 2022
Maximum Hourly Rain 2.0 mm 10:02 18.5 mm, 2022
Maximum 10-min Rain 0.9 mm 09:22 8.2 mm, 2022
Maximum Rain Rate 7 mm/h 09:20 114 mm/h, 2022
Minimum Dew Point 6.6 °C 07:04 6.8 °C 9.6 °C, 2024 -1.1 °C, 2016
Maximum Dew Point 13.2 °C 00:02 13.6 °C 15.0 °C, 2020 3.6 °C, 2016
Mean Dew Point 9.2 °C 10.3 °C 11.5 °C, 2014 1.1 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 10.4 °C * 07:28 9.4 °C 16.3 °C, 2020 1.1 °C, 2018
Day Maximum (09-21) * 13.1 °C * 13:21 14.0 °C 16.9 °C, 2020 9.5 °C, 2016
Max 10m Temp Rise 0.5 °C 11:25 0.5 °C 0.5 °C, 2012 0.1 °C, 2014
Max 1hr Temp Rise 1.6 °C 11:51 1.5 °C 2.4 °C, 2018 0.4 °C, 2014
Max 1hr Hum Rise 10% 09:58 7% 12%, 2013 1%, 2015
Max 10m Temp Fall 0.5 °C 09:24 0.3 °C 1.6 °C, 2020 0.2 °C, 2010
Max 1hr Temp Fall 1.6 °C 10:03 1.0 °C 3.5 °C, 2020 0.3 °C, 2024
Max 1hr Hum Fall 9% 12:19 7% 14%, 2013 1%, 2015
Max 10m Wind Speed 16.5 mph 09:04 13.3 mph 17.8 mph, 2023 3.2 mph, 2017
Minimum Feels-like 7.0 °C 23:35 6.2 °C 12.7 °C, 2024 -2.7 °C, 2018
Maximum Feels-like 17.6 °C 00:00 17.9 °C 20.8 °C, 2020 8.9 °C, 2016
Mean Feels-like 12.6 °C 13.6 °C 16.0 °C, 2014 3.5 °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 5.1 °C (-0.4) 5.8 °C (+0.3) 9.1 °C (+3.6), 2020 2.6 °C (-2.9), 2024
Humidity Range 16% 13% 36%, 2013 2%, 2015
Pressure Range 11 hPa 19 hPa 22 hPa, 2023 3 hPa, 2024
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0.7 [8%]0.7 hrs (12%) [4.1%] 8.6 [100%], 2018 0 [0%], 2023
Wet Hours 5
[Mean rain rate: 0.8 mm/h]		12 hrs (286%) [25%] 14, 2023 0, 2009
Cloud Cover Overcast with periods of Mostly Cloudy
Events None
Comments Rain spells
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature @ Hampstead Heath 8.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 2nd November 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