Daily Report for 3rd November 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 5.1 °C (-1.6) 23:56 7.9 °C (+1.2) 13.6 °C (+6.9), 2010 1.3 °C (-5.4), 2021
Maximum Temperature 9.9 °C (-2.2) 14:56 14.5 °C (+2.5) 17.4 °C (+5.3), 2011 8.9 °C (-3.2), 2021
Mean Temperature 7.9 °C (-1.9) 12.0 °C (+1.8) 15.3 °C, 2011 5.8 °C, 2021
Minimum Humidity 72% 15:45 71% 90%, 2015 54%, 2013
Maximum Humidity 90% 09:11 91% 98%, 2009 80%, 2016
Mean Humidity 81% 82% 93%, 2022 71%, 2013
Minimum Pressure 1013 hPa 07:27 1004 hPa 1028 hPa, 2024 978 hPa, 2023
Maximum Pressure 1028 hPa 23:55 1019 hPa 1031 hPa, 2024 985 hPa, 2019
Mean Pressure 1020 hPa 1010 hPa 1029 hPa, 2024 982 hPa, 2019
Mean Wind Speed 3.5 mph (-1.1) 6.8 mph (+2.2) 7.7 mph, 2013 1.7 mph, 2017
Maximum Wind Speed 8.2 mph 05:52 16.4 mph 20.4 mph, 2013 6.9 mph, 2015
Maximum Gust 20.7 mph 09:35 33.8 mph 29.4 mph, 2013 9.0 mph, 2015
Mean Wind Direction WSW
Rainfall 2.8 mm 4.0 mm (60%) 24.0 mm, 2022
Maximum Hourly Rain 2.0 mm 06:38 8.4 mm, 2022
Maximum 10-min Rain 0.9 mm 06:23 3.4 mm, 2022
Maximum Rain Rate 18 mm/h 06:31 42 mm/h, 2022
Minimum Dew Point 3.0 °C 23:57 5.0 °C 11.5 °C, 2011 -1.8 °C, 2016
Maximum Dew Point 7.3 °C 07:57 12.5 °C 14.3 °C, 2011 4.9 °C, 2016
Mean Dew Point 4.9 °C 8.9 °C 13.1 °C, 2011 1.9 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 6.6 °C * 04:29 11.1 °C 14.2 °C, 2011 1.3 °C, 2021
Day Maximum (09-21) 9.9 °C 14:56 14.5 °C 17.4 °C, 2011 8.9 °C, 2021
Max 10m Temp Rise 0.4 °C 05:16 0.4 °C 0.6 °C, 2009 0.1 °C, 2014
Max 1hr Temp Rise 1.5 °C 05:37 1.4 °C 2.3 °C, 2016 0.3 °C, 2014
Max 1hr Hum Rise 8% 06:30 7% 11%, 2023 1%, 2015
Max 10m Temp Fall 0.6 °C 08:12 0.8 °C 0.8 °C, 2009 0.2 °C, 2010
Max 1hr Temp Fall 1.1 °C 08:56 1.7 °C 2.3 °C, 2009 0.4 °C, 2024
Max 1hr Hum Fall 5% 10:25 8% 16%, 2009 1%, 2015
Max 10m Wind Speed 0.9 mph 05:53 8.0 mph 14.5 mph, 2013 0.9 mph, 2020
Minimum Feels-like 3.2 °C 09:35 6.7 °C 14.8 °C, 2011 -0.5 °C, 2016
Maximum Feels-like 9.9 °C 14:49 17.2 °C 20.5 °C, 2011 8.4 °C, 2012
Mean Feels-like 7.8 °C 13.3 °C 18.2 °C, 2011 4.5 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.8 °C (-0.6) 6.7 °C (+1.3) 9.0 °C (+3.6), 2016 1.7 °C (-3.7), 2024
Humidity Range 18% 21% 42%, 2013 5%, 2015
Pressure Range 15 hPa 16 hPa 18 hPa, 2013 3 hPa, 2024
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 2.5 [29%]6.8 hrs (75%) [27%] 6 [71%], 2013 0 [0%], 2015
Wet Hours 3
[Mean rain rate: 0.9 mm/h]		5.5 hrs (87%) [7.6%] 7, 2022 0, 2010
Cloud Cover Partly Cloudy
Events None
Comments early am rn
Extra Comments
Issues wind sensor not reporting properly - v low speeds
Observer Absent? Yes - observations may be unreliable
Pond Temperature @ Hampstead Heath 10.5 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 3rd November 2020.
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.
View monthly summary

Daily Graph of Conditions

day graph

Webcam Summary of Cloud Conditions

daycamsumFull resolution individual images at up-to 5 minute intervals

Wind rose