Daily Report for 8th February 2009

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -0.6 °C (-3.6) 02:59 -1.7 °C (-4.7) 9.9 °C (+6.9), 2022 -3.2 °C (-6.2), 2012
Maximum Temperature 5.6 °C (-2.3) 13:38 3.0 °C (-4.9) 12.3 °C (+4.4), 2022 -1.2 °C (-9.1), 2021
Mean Temperature 2.5 °C (-2.9) 0.7 °C (-4.8) 11.0 °C, 2022 -1.8 °C, 2021
Minimum Humidity 55% 14:10 70% 88%, 2024 51%, 2023
Maximum Humidity 89% 23:15 94% 99%, 2024 82%, 2012
Mean Humidity 72% 82% 94%, 2024 72%, 2016
Minimum Pressure 1000 hPa 00:22 994 hPa 1039 hPa, 2012 976 hPa, 2014
Maximum Pressure 1004 hPa 10:15 1001 hPa 1042 hPa, 2012 987 hPa, 2014
Mean Pressure 1002 hPa 997 hPa 1040 hPa, 2012 978 hPa, 2014
Mean Wind Speed 3.1 mph (-2.0) 4.5 mph (-0.6) 13.2 mph, 2016 2.3 mph, 2017
Maximum Wind Speed n/a 0.0 mph 32.1, 2019 7.9, 2017
Maximum Gust 19.0 mph 19.5 mph 45.1 mph, 2014 10.5 mph, 2011
Mean Wind Direction n/a
Rainfall 5.0 mm 28.5 mm (222%) 17.3 mm, 2024
Maximum Hourly Rain 2.0 mm 19:57 2.7 mm, 2024
Maximum 10-min Rain n/a 19:57 1.2, 2014
Maximum Rain Rate n/a 19:57 36, 2014
Minimum Dew Point -3.4 °C 01:48 -4.6 °C 6.2 °C, 2022 -8.3 °C, 2012
Maximum Dew Point 2.7 °C 23:36 0.5 °C 10.8 °C, 2024 -3.2 °C, 2012
Mean Dew Point -1.0 °C -1.5 °C 7.2 °C, 2022 -4.7 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) -0.6 °C -1.4 °C 9.9 °C, 2022 -3.9 °C, 2012
Day Maximum (09-21) 5.6 °C 3.0 °C 12.3 °C, 2022 -1.2 °C, 2021
Max 10m Temp Rise 0.8 °C 12:52 0.3 °C 0.9 °C, 2024 0.2 °C, 2012
Max 1hr Temp Rise 1.7 °C 13:12 0.6 °C 2.6 °C, 2023 0.2 °C, 2010
Max 1hr Hum Rise 14% 17:00 4% 15%, 2023 2%, 2010
Max 10m Temp Fall 0.6 °C 17:37 0.3 °C 0.6 °C, 2009 0.2 °C, 2012
Max 1hr Temp Fall 1.4 °C 17:37 0.6 °C 1.7 °C, 2015 0.4 °C, 2012
Max 1hr Hum Fall 13% 13:22 5% 20%, 2014 2%, 2012
Max 10m Wind Speed n/a 0.0 mph 21.9, 2016 6, 2011
Minimum Feels-like n/a 0.0 °C 6.6, 2022 -10.6, 2021
Maximum Feels-like n/a 0.0 °C 12.8, 2024 -3.4, 2021
Mean Feels-like n/a 0.0 °C 11, 2022 -7.6, 2021
Air-frost Hrs 3 hrs 6 hrs 24 hrs, 2021 0 hrs, 2011
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.2 °C (+1.3) 4.6 °C (-0.2) 10.2 °C (+5.3), 2023 1.4 °C (-3.5), 2021
Humidity Range 34% 24% 46%, 2023 9%, 2019
Pressure Range 4 hPa 7 hPa 25 hPa, 2024 2 hPa, 2022
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 3.8 [45%]24 hrs (114%) [36%] 8 [94%], 2023 0 [0%], 2010
Wet Hours 0 hrs (0%) [0%] 15, 2024 , 2009
Cloud Cover not available
Events Lying Snow (at 09z): ~1 cm
Air Frost
Comments pm-night Rain; [1c.m Snow Rem Patchily]
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 8th February 2009.
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

daygraph daygraph 2 daygraph-wdir

Webcam Summary of Cloud Conditions


Webcam summary not available for this day

Wind rose