Daily Report for 9th November 2010

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 4.8 °C (-1.4) 23:56 8.1 °C (+1.6) 11.5 °C (+5.3), 2020 1.4 °C (-4.8), 2017
Maximum Temperature 7.9 °C (-3.3) 08:58 12.5 °C (+0.7) 16.6 °C (+5.4), 2020 6.9 °C (-4.3), 2013
Mean Temperature 6.9 °C (-2.3) 10.6 °C (+1.2) 13.5 °C, 2020 4.6 °C, 2009
Minimum Humidity 81% 17:08 74% 95%, 2013 69%, 2012
Maximum Humidity 96% 11:30 93% 98%, 2009 78%, 2012
Mean Humidity 90% 85% 97%, 2013 75%, 2012
Minimum Pressure 968 hPa 01:44 998 hPa 1024 hPa, 2024 968 hPa, 2010
Maximum Pressure 987 hPa 23:29 1010 hPa 1027 hPa, 2024 987 hPa, 2010
Mean Pressure 978 hPa 1004 hPa 1025 hPa, 2024 978 hPa, 2010
Mean Wind Speed 8.3 mph (+3.7) 6.0 mph (+1.4) 9.0 mph, 2015 0.6 mph, 2024
Maximum Wind Speed 16.3 mph 14.5 mph 24.2 mph, 2016 3.9 mph, 2024
Maximum Gust 26.1 mph 11:57 22.7 mph 38.7 mph, 2016 5.8 mph, 2024
Mean Wind Direction NE
Rainfall 1.9 mm 12.0 mm (60%) 20.8 mm, 2016
Maximum Hourly Rain 0.8 mm 11:13 5.1 mm, 2016
Maximum 10-min Rain 0.3 mm 10:31 1.7 mm, 2016
Maximum Rain Rate 1.5 mm/h 10:42 72 mm/h, 2022
Minimum Dew Point 2.2 °C 23:28 5.8 °C 10.6 °C, 2020 0.4 °C, 2017
Maximum Dew Point 7.3 °C 10:19 10.0 °C 14.1 °C, 2020 4.5 °C, 2016
Mean Dew Point 5.3 °C 8.2 °C 12.2 °C, 2020 3.1 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 5.6 °C * 9.1 °C 11.5 °C, 2020 1.4 °C, 2017
Day Maximum (09-21) 7.9 °C 12.4 °C 16.6 °C, 2020 6.9 °C, 2013
Max 10m Temp Rise 0.2 °C 03:32 0.2 °C 1.0 °C, 2009 0.2 °C, 2010
Max 1hr Temp Rise 0.7 °C 04:21 0.8 °C 2.3 °C, 2018 0.4 °C, 2024
Max 1hr Hum Rise 3% 03:10 6% 14%, 2022 1%, 2013
Max 10m Temp Fall 0.2 °C 16:38 0.4 °C 2.7 °C, 2022 0.2 °C, 2010
Max 1hr Temp Fall 0.7 °C 19:10 1.5 °C 3.1 °C, 2022 0.4 °C, 2024
Max 1hr Hum Fall 6% 15:38 7% 14%, 2018 1%, 2013
Max 10m Wind Speed 11.4 mph 08:21 9.6 mph 20.2 mph, 2016 0.1 mph, 2020
Minimum Feels-like 1.0 °C 23:27 7.1 °C 13.1 °C, 2020 -2.2 °C, 2019
Maximum Feels-like 6.7 °C 06:19 13.5 °C 20.0 °C, 2020 6.7 °C, 2010
Mean Feels-like 4.0 °C 10.8 °C 15.9 °C, 2020 2.9 °C, 2019
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 3.1 °C (-1.9) 4.3 °C (-0.9) 11.3 °C (+6.3), 2017 1.5 °C (-3.5), 2024
Humidity Range 15% 19% 27%, 2014 3%, 2013
Pressure Range 19 hPa 12 hPa 20 hPa, 2018 2 hPa, 2021
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]15 hrs (57%) [20%] 6 [73%], 2022 0 [0%], 2010
Wet Hours 3
[Mean rain rate: 0.6 mm/h]		15 hrs (77%) [6.7%] 10, 2016 0, 2009
Cloud Cover Overcast
Events None
Comments 03-04 Light Shower; 08-13 broken Light Rain
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature @ Hampstead Heath 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 9th November 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