Daily Report for 10th October 2017

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.3 °C (+2.1) 02:50 10.1 °C (+0.5) 15.8 °C (+6.6), 2011 4.9 °C (-4.3), 2012
Maximum Temperature 16.0 °C (+0.3) 14:42 16.2 °C (+0.2) 22.7 °C (+7.0), 2023 11.7 °C (-4.0), 2013
Mean Temperature 13.9 °C (+1.2) 13.4 °C (+0.3) 17.8 °C, 2023 8.8 °C, 2013
Minimum Humidity 77% 14:13 65% 77%, 2017 47%, 2010
Maximum Humidity 92% 06:49 89% 98%, 2009 73%, 2013
Mean Humidity 86% 78% 88%, 2021 66%, 2013
Minimum Pressure 1014 hPa 20:00 1015 hPa 1029 hPa, 2021 993 hPa, 2024
Maximum Pressure 1017 hPa 00:30 1022 hPa 1032 hPa, 2021 1011 hPa, 2014
Mean Pressure 1015 hPa 1018 hPa 1030 hPa, 2021 1006 hPa, 2024
Mean Wind Speed 6.7 mph (+2.6) 5.7 mph (+1.6) 10.8 mph, 2011 1.8 mph, 2021
Maximum Wind Speed 14.5 mph 11:53 13.7 mph 21.5 mph, 2011 8.8 mph, 2021
Maximum Gust 24.2 mph 10:38 21.5 mph 37.7 mph, 2011 12.5 mph, 2021
Mean Wind Direction SW
Rainfall 0.0 mm 1.6 mm (8%) 4.6 mm, 2022
Maximum Hourly Rain n/a 4.4, 2022
Maximum 10-min Rain n/a 2.8, 2014
Maximum Rain Rate n/a 48, 2014
Minimum Dew Point 9.5 °C 02:07 7.3 °C 12.2 °C, 2023 1.7 °C, 2013
Maximum Dew Point 13.7 °C 22:57 12.0 °C 16.9 °C, 2023 4.5 °C, 2013
Mean Dew Point 11.6 °C 9.6 °C 14.7 °C, 2023 2.8 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 11.3 °C 02:50 10.7 °C 15.8 °C, 2011 4.9 °C, 2012
Day Maximum (09-21) 16.0 °C 14:42 16.2 °C 22.7 °C, 2023 11.4 °C, 2024
Max 10m Temp Rise 0.3 °C 10:18 0.5 °C 0.9 °C, 2012 0.3 °C, 2017
Max 1hr Temp Rise 1.0 °C 10:18 1.5 °C 3.8 °C, 2012 1.0 °C, 2017
Max 1hr Hum Rise 3% 01:26 7% 15%, 2014 3%, 2017
Max 10m Temp Fall 0.2 °C 00:34 0.4 °C 1.1 °C, 2014 0.2 °C, 2015
Max 1hr Temp Fall 0.7 °C 01:21 1.3 °C 3.0 °C, 2022 0.7 °C, 2017
Max 1hr Hum Fall 5% 10:30 9% 24%, 2010 5%, 2017
Max 10m Wind Speed 11.5 mph 11:56 10.2 mph 14.6 mph, 2011 5.9 mph, 2021
Minimum Feels-like 12.4 °C 02:32 9.6 °C 18.1 °C, 2011 1.4 °C, 2020
Maximum Feels-like 18.7 °C 17:18 18.2 °C 27.8 °C, 2023 11.7 °C, 2013
Mean Feels-like 16.0 °C 14.5 °C 21.6 °C, 2023 7.2 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 4.7 °C (-1.7) 6.2 °C (-0.4) 11.7 °C (+5.3), 2018 3.7 °C (-2.7), 2011
Humidity Range 15% 25% 49%, 2010 15%, 2017
Pressure Range 3 hPa 7 hPa 21 hPa, 2024 2 hPa, 2020
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [10%]34 hrs (83%) [33%] 10 [101%], 2018 0.5 [5%], 2015
Wet Hours 02.5 hrs (16%) [1%] 3, 2024 0, 2010
Cloud Cover am: Overcast
pm: Mostly Cloudy
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 10th October 2017.
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

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Webcam Summary of Cloud Conditions

daycamsumLarge resolution version

Wind rose