Daily Report for 7th October 2015

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 11.2 °C (+1.7) 23:58 10.6 °C (+0.9) 14.4 °C (+4.9), 2023 4.4 °C (-5.1), 2012
Maximum Temperature 15.1 °C (-0.9) 09:08 17.0 °C (+0.7) 23.9 °C (+7.9), 2023 13.4 °C (-2.6), 2018
Mean Temperature 14.1 °C (+0.4) 13.8 °C (+0.8) 18.5 °C, 2023 9.3 °C, 2018
Minimum Humidity 75% 21:40 65% 89%, 2009 46%, 2014
Maximum Humidity 93% 06:17 92% 98%, 2009 78%, 2011
Mean Humidity 88% 81% 94%, 2009 69%, 2011
Minimum Pressure 998 hPa 00:14 1009 hPa 1025 hPa, 2021 993 hPa, 2014
Maximum Pressure 1017 hPa 22:47 1018 hPa 1029 hPa, 2021 1001 hPa, 2024
Mean Pressure 1008 hPa 1013 hPa 1027 hPa, 2021 997 hPa, 2014
Mean Wind Speed 5.2 mph (+1.1) 3.5 mph (-0.6) 7.4 mph, 2023 1.4 mph, 2012
Maximum Wind Speed 12.5 mph 13:12 10.5 mph 18.4 mph, 2022 4.3 mph, 2012
Maximum Gust 17.3 mph 13:10 14.6 mph 30.0 mph, 2022 6.4 mph, 2012
Mean Wind Direction W
Rainfall 2.2 mm 22.2 mm (151%) 7.2 mm, 2009
Maximum Hourly Rain 1.5 mm 01:33 5.3 mm, 2024
Maximum 10-min Rain 1.0 mm 01:25 1.7 mm, 2022
Maximum Rain Rate 11 mm/h 01:25 30 mm/h, 2022
Minimum Dew Point 7.4 °C 23:53 7.7 °C 12.6 °C, 2023 2.7 °C, 2014
Maximum Dew Point 13.8 °C 06:17 13.1 °C 16.7 °C, 2023 8.1 °C, 2018
Mean Dew Point 12.1 °C 10.5 °C 14.7 °C, 2023 5.6 °C, 2018
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 14.5 °C * 03:50 11.2 °C 14.5 °C, 2015 4.4 °C, 2012
Day Maximum (09-21) 15.1 °C 09:20 17.0 °C 23.9 °C, 2023 12.8 °C, 2009
Max 10m Temp Rise 0.1 °C 06:08 0.4 °C 0.9 °C, 2012 0.1 °C, 2015
Max 1hr Temp Rise 0.3 °C 08:36 1.6 °C 3.6 °C, 2012 0.3 °C, 2015
Max 1hr Hum Rise 2% 14:28 5% 13%, 2022 2%, 2015
Max 10m Temp Fall 0.3 °C 13:11 0.4 °C 0.9 °C, 2022 0.2 °C, 2010
Max 1hr Temp Fall 1.0 °C 21:49 1.3 °C 2.2 °C, 2022 0.4 °C, 2021
Max 1hr Hum Fall 6% 16:54 8% 14%, 2014 5%, 2016
Max 10m Wind Speed 9.1 mph 13:13 7.7 mph 13.7 mph, 2022 3.4 mph, 2012
Minimum Feels-like 11.4 °C 23:57 10.3 °C 17.0 °C, 2023 0.9 °C, 2018
Maximum Feels-like 18.3 °C 08:36 19.4 °C 28.8 °C, 2023 13.5 °C, 2018
Mean Feels-like 16.5 °C 15.5 °C 22.3 °C, 2023 8.0 °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 3.9 °C (-2.6) 6.4 °C (-0.2) 9.7 °C (+3.2), 2010 3.1 °C (-3.4), 2016
Humidity Range 18% 27% 51%, 2014 9%, 2009
Pressure Range 19 hPa 9 hPa 19 hPa, 2015 2 hPa, 2025
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]30 hrs (106%) [42%] 7.5 [74%], 2023 0 [0%], 2015
Wet Hours 2
[Mean rain rate: 1.1 mm/h]		19 hrs (172%) [11%] 6, 2009 0, 2010
Cloud Cover Overcast with periods of Mostly Cloudy
Events None
Comments Showers
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 7th October 2015.
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

daycamsumLarge resolution version

Wind rose