Daily Report for 6th October 2021

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.7 °C (+0.1) 07:27 9.8 °C (+0.0) 14.9 °C (+5.3), 2015 6.3 °C (-3.3), 2012
Maximum Temperature 16.2 °C (+0.0) 15:23 16.1 °C (-0.2) 20.5 °C (+4.3), 2023 12.3 °C (-3.9), 2018
Mean Temperature 12.3 °C (+0.1) 12.8 °C (-0.1) 16.5 °C, 2023 9.8 °C, 2012
Minimum Humidity 62% 14:48 67% 88%, 2018 43%, 2011
Maximum Humidity 89% 23:49 93% 98%, 2013 69%, 2016
Mean Humidity 77% 83% 93%, 2018 60%, 2016
Minimum Pressure 1011 hPa 00:00 1000 hPa 1025 hPa, 2013 994 hPa, 2015
Maximum Pressure 1026 hPa 23:38 1014 hPa 1030 hPa, 2022 1001 hPa, 2015
Mean Pressure 1019 hPa 1007 hPa 1028 hPa, 2022 996 hPa, 2015
Mean Wind Speed 5.9 mph (+1.8) 5.8 mph (+1.7) 8.8 mph, 2011 1.9 mph, 2013
Maximum Wind Speed 16.1 mph 11:17 15.5 mph 18.5 mph, 2011 8.5 mph, 2012
Maximum Gust 27.4 mph 10:53 25.7 mph 30.6 mph, 2016 10.9 mph, 2013
Mean Wind Direction NW
Rainfall 0.0 mm 48.6 mm (386%) 15.2 mm, 2019
Maximum Hourly Rain n/a 5.9, 2019
Maximum 10-min Rain n/a 2.4, 2015
Maximum Rain Rate n/a 42, 2015
Minimum Dew Point 6.8 °C 07:12 7.4 °C 13.1 °C, 2015 2.1 °C, 2011
Maximum Dew Point 9.6 °C 14:33 12.6 °C 17.8 °C, 2009 5.7 °C, 2016
Mean Dew Point 8.2 °C 9.9 °C 15.4 °C, 2009 4.5 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 9.7 °C 07:23 10.4 °C 15.8 °C, 2015 7.3 °C, 2012
Day Maximum (09-21) 16.2 °C 15:23 16.1 °C 20.5 °C, 2023 10.6 °C, 2018
Max 10m Temp Rise 0.4 °C 11:31 0.5 °C 0.9 °C, 2013 0.3 °C, 2010
Max 1hr Temp Rise 1.4 °C 09:45 1.9 °C 4.4 °C, 2013 1.0 °C, 2011
Max 1hr Hum Rise 10% 18:29 10% 10%, 2010 3%, 2018
Max 10m Temp Fall 0.5 °C 18:37 0.7 °C 0.7 °C, 2012 0.2 °C, 2014
Max 1hr Temp Fall 2.3 °C 19:08 2.0 °C 2.8 °C, 2013 0.8 °C, 2014
Max 1hr Hum Fall 7% 11:32 9% 18%, 2010 2%, 2014
Max 10m Wind Speed 13.1 mph 11:19 12.5 mph 13.1 mph, 2021 5.2 mph, 2012
Minimum Feels-like 5.8 °C 07:48 9.0 °C 18.0 °C, 2015 3.7 °C, 2018
Maximum Feels-like 17.3 °C 15:20 18.4 °C 24.5 °C, 2023 13.8 °C, 2018
Mean Feels-like 12.7 °C 14.0 °C 22.2 °C, 2009 8.8 °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 6.5 °C (-0.0) 6.3 °C (-0.2) 10.4 °C (+3.9), 2013 3.9 °C (-2.6), 2015
Humidity Range 27% 26% 49%, 2011 8%, 2018
Pressure Range 15 hPa 14 hPa 17 hPa, 2010 1 hPa, 2013
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 9.5 [93%]29 hrs (117%) [47%] 9.5 [93%], 2021 0 [0%], 2014
Wet Hours 023 hrs (243%) [16%] 8, 2018 0, 2013
Cloud Cover Sunny
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 15.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 6th October 2021.
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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