Daily Report for 3rd October 2015

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 8.6 °C (-1.3) 05:01 9.2 °C (-0.7) 16.2 °C (+6.3), 2011 3.1 °C (-6.8), 2019
Maximum Temperature 15.1 °C (-1.5) 16:13 16.9 °C (+0.3) 25.3 °C (+8.8), 2011 13.3 °C (-3.2), 2019
Mean Temperature 11.5 °C (-1.4) 12.8 °C (-0.2) 19.9 °C, 2011 8.7 °C, 2019
Minimum Humidity 73% 18:23 57% 89%, 2013 35%, 2011
Maximum Humidity 93% 10:09 91% 98%, 2010 78%, 2011
Mean Humidity 85% 76% 94%, 2013 59%, 2011
Minimum Pressure 1012 hPa 18:30 1020 hPa 1025 hPa, 2016 983 hPa, 2020
Maximum Pressure 1020 hPa 00:51 1027 hPa 1031 hPa, 2016 990 hPa, 2020
Mean Pressure 1015 hPa 1023 hPa 1029 hPa, 2016 987 hPa, 2020
Mean Wind Speed 0.8 mph (-3.3) 2.6 mph (-1.5) 6.6 mph, 2023 0.8 mph, 2015
Maximum Wind Speed 5.6 mph 12:39 9.2 mph 17.6 mph, 2010 5.6 mph, 2015
Maximum Gust 8.1 mph 22:16 12.7 mph 28.9 mph, 2009 8.1 mph, 2015
Mean Wind Direction NNW
Rainfall 0.0 mm 0.0 mm (0%) 34.0 mm, 2020
Maximum Hourly Rain n/a 7.7, 2012
Maximum 10-min Rain n/a 5.4, 2012
Maximum Rain Rate n/a 76.4, 2012
Minimum Dew Point 6.7 °C 05:00 6.2 °C 12.7 °C, 2013 2.1 °C, 2019
Maximum Dew Point 12.5 °C 13:48 11.7 °C 17.3 °C, 2023 8.8 °C, 2017
Mean Dew Point 9.0 °C 8.4 °C 14.7 °C, 2013 5.4 °C, 2016
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 8.6 °C 05:01 9.2 °C 16.2 °C, 2011 3.1 °C, 2019
Day Maximum (09-21) 15.1 °C 16:13 16.9 °C 25.3 °C, 2011 13.3 °C, 2019
Max 10m Temp Rise 0.5 °C 22:10 0.5 °C 1.0 °C, 2022 0.3 °C, 2020
Max 1hr Temp Rise 1.5 °C 11:27 2.0 °C 3.5 °C, 2016 0.9 °C, 2020
Max 1hr Hum Rise 6% 20:17 8% 13%, 2011 2%, 2013
Max 10m Temp Fall 0.6 °C 19:31 0.5 °C 1.4 °C, 2012 0.2 °C, 2010
Max 1hr Temp Fall 2.5 °C 19:42 1.8 °C 3.5 °C, 2023 0.7 °C, 2013
Max 1hr Hum Fall 6% 14:42 11% 19%, 2019 4%, 2013
Max 10m Wind Speed 4.2 mph 12:47 6.7 mph 13.7 mph, 2021 4.2 mph, 2015
Minimum Feels-like 7.6 °C 04:55 7.5 °C 17.9 °C, 2011 0.2 °C, 2019
Maximum Feels-like 17.3 °C 14:50 18.0 °C 27.0 °C, 2011 13.6 °C, 2009
Mean Feels-like 12.4 °C 13.3 °C 21.8 °C, 2011 8.9 °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 6.5 °C (-0.1) 7.7 °C (+1.1) 11.8 °C (+5.2), 2016 3.5 °C (-3.1), 2020
Humidity Range 20% 34% 43%, 2011 9%, 2013
Pressure Range 8 hPa 7 hPa 18 hPa, 2023 3 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1 [10%]21 hrs (172%) [69%] 10.2 [98%], 2016 0.2 [2%], 2009
Wet Hours 00 hrs (0%) [0%] 15, 2020 0, 2011
Cloud Cover am: Overcast
pm: Mostly Cloudy
Events None
Comments early am Fog
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature (Heath) 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 3rd 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