Daily Report for 2nd November 2020

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 7.8 °C (+1.0) 23:53 9.2 °C (+2.5) 11.3 °C (+4.5), 2010 1.1 °C (-5.7), 2018
Maximum Temperature 16.9 °C (+4.6) 01:52 16.9 °C (+4.7) 16.9 °C (+4.6), 2020 9.5 °C (-2.8), 2016
Mean Temperature 13.6 °C (+2.8) 14.0 °C (+3.6) 13.9 °C, 2014 4.9 °C, 2018
Minimum Humidity 61% 16:29 70% 95%, 2015 52%, 2012
Maximum Humidity 91% 05:09 92% 97%, 2010 82%, 2016
Mean Humidity 78% 82% 96%, 2015 73%, 2016
Minimum Pressure 998 hPa 05:07 999 hPa 1023 hPa, 2016 956 hPa, 2023
Maximum Pressure 1018 hPa 23:57 1015 hPa 1029 hPa, 2018 978 hPa, 2023
Mean Pressure 1006 hPa 1005 hPa 1025 hPa, 2016 968 hPa, 2023
Mean Wind Speed 8.8 mph (+4.2) 8.4 mph (+3.8) 10.1 mph, 2019 0.5 mph, 2021
Maximum Wind Speed 22.2 mph 02:08 20.4 mph 24.3 mph, 2023 4.0 mph, 2017
Maximum Gust 38.0 mph 01:01 40.3 mph 39.2 mph, 2023 8.1 mph, 2017
Mean Wind Direction SW
Rainfall 1.0 mm 1.2 mm (27%) 23.5 mm, 2022
Maximum Hourly Rain 0.5 mm 09:30 18.5 mm, 2022
Maximum 10-min Rain 0.5 mm 09:30 8.2 mm, 2022
Maximum Rain Rate 2.2 mm/h 09:30 114 mm/h, 2022
Minimum Dew Point 4.7 °C 23:54 6.1 °C 8.9 °C, 2010 -1.1 °C, 2016
Maximum Dew Point 15.0 °C 00:36 15.1 °C 15.0 °C, 2020 3.6 °C, 2016
Mean Dew Point 9.7 °C 10.9 °C 11.5 °C, 2014 1.1 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 16.3 °C * 05:21 13.4 °C 16.3 °C, 2020 1.1 °C, 2018
Day Maximum (09-21) 16.9 °C 09:16 16.9 °C 16.9 °C, 2020 9.5 °C, 2016
Max 10m Temp Rise 0.5 °C 11:52 0.5 °C 0.5 °C, 2012 0.1 °C, 2014
Max 1hr Temp Rise 0.9 °C 12:33 1.4 °C 2.4 °C, 2018 0.4 °C, 2014
Max 1hr Hum Rise 7% 18:14 7% 12%, 2013 1%, 2015
Max 10m Temp Fall 1.6 °C 09:31 1.0 °C 1.6 °C, 2020 0.2 °C, 2010
Max 1hr Temp Fall 3.5 °C 10:13 2.0 °C 3.5 °C, 2020 0.7 °C, 2010
Max 1hr Hum Fall 9% 11:17 10% 14%, 2013 1%, 2015
Max 10m Wind Speed 13.1 mph 01:48 11.5 mph 17.8 mph, 2023 3.2 mph, 2017
Minimum Feels-like 5.9 °C 21:59 8.4 °C 12.6 °C, 2010 -2.7 °C, 2018
Maximum Feels-like 20.8 °C 04:09 20.8 °C 20.8 °C, 2020 8.9 °C, 2016
Mean Feels-like 15.2 °C 16.0 °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 9.1 °C (+3.6) 7.6 °C (+2.2) 9.1 °C (+3.6), 2020 2.7 °C (-2.8), 2023
Humidity Range 30% 22% 36%, 2013 2%, 2015
Pressure Range 20 hPa 16 hPa 22 hPa, 2023 3 hPa, 2017
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [47%]4.3 hrs (71%) [25%] 8.6 [101%], 2018 0 [0%], 2023
Wet Hours 2
[Mean rain rate: 0.5 mm/h]		2.5 hrs (60%) [5.2%] 14, 2023 0, 2009
Cloud Cover Partly Cloudy with periods of Mostly Sunny
Events None
Comments am rn
Extra Comments
Issues wind sensor not reporting properly - v low speeds
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 10.5 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 2nd 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.
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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