Daily Report for 7th February 2012

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature -3.9 °C (-6.9) 22:06 -2.4 °C (-5.4) 6.6 °C (+3.6), 2019 -3.9 °C (-6.9), 2012
Maximum Temperature 2.1 °C (-5.7) 12:32 2.1 °C (-5.8) 11.4 °C (+3.6), 2011 2.1 °C (-5.7), 2012
Mean Temperature 0.0 °C (-6.3) -0.2 °C (-5.6) 9.0 °C, 2011 0.0 °C, 2012
Minimum Humidity 55% 18:04 62% 90%, 2010 54%, 2013
Maximum Humidity 95% 03:54 86% 98%, 2010 84%, 2011
Mean Humidity 75% 74% 96%, 2010 68%, 2013
Minimum Pressure 1035 hPa 02:29 1030 hPa 1039 hPa, 2023 977 hPa, 2014
Maximum Pressure 1043 hPa 19:43 1037 hPa 1043 hPa, 2012 994 hPa, 2016
Mean Pressure 1039 hPa 1034 hPa 1040 hPa, 2023 989 hPa, 2014
Mean Wind Speed 4.3 mph (-0.8) 4.3 mph (-0.8) 11.5 mph, 2021 1.2 mph, 2023
Maximum Wind Speed 13.7 mph 12.3 mph 25.9 mph, 2016 8.5 mph, 2017
Maximum Gust 17.8 mph 19:53 17.6 mph 39.2 mph, 2019 11.5 mph, 2023
Mean Wind Direction ENE
Rainfall 0.0 mm 12.0 mm (110%) 13.0 mm, 2016
Maximum Hourly Rain n/a 02:38 10.7, 2016
Maximum 10-min Rain n/a 02:38 5.5, 2016
Maximum Rain Rate n/a 162, 2016
Minimum Dew Point -10.4 °C 19:01 -7.1 °C 3.1 °C, 2024 -10.4 °C, 2012
Maximum Dew Point 0.9 °C 03:44 -1.7 °C 9.3 °C, 2014 -0.2 °C, 2018
Mean Dew Point -4.2 °C -4.5 °C 4.6 °C, 2011 -4.2 °C, 2012
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 1.1 °C * 07:30 -1.8 °C 8.7 °C, 2011 -2.4 °C, 2009
Day Maximum (09-21) 2.1 °C 12:32 2.1 °C 11.4 °C, 2011 0.9 °C, 2021
Max 10m Temp Rise 0.4 °C 11:03 0.4 °C 0.8 °C, 2023 0.2 °C, 2010
Max 1hr Temp Rise 0.6 °C 11:09 1.4 °C 2.5 °C, 2023 0.4 °C, 2010
Max 1hr Hum Rise 3% 19:01 6% 12%, 2016 2%, 2024
Max 10m Temp Fall 0.3 °C 17:50 0.3 °C 1.5 °C, 2014 0.2 °C, 2024
Max 1hr Temp Fall 1.4 °C 17:07 1.2 °C 4.5 °C, 2014 0.5 °C, 2024
Max 1hr Hum Fall 10% 10:28 10% 21%, 2011 4%, 2010
Max 10m Wind Speed 8.5 mph 19:15 8.5 mph 18.1 mph, 2016 4.6 mph, 2023
Minimum Feels-like -10.7 °C 19:54 -6.8 °C 3.2 °C, 2011 -10.7 °C, 2012
Maximum Feels-like 2.0 °C 11:53 1.2 °C 11.8 °C, 2011 0.5 °C, 2021
Mean Feels-like -2.6 °C -2.5 °C 7.1 °C, 2011 -5.1 °C, 2021
Air-frost Hrs 8 hrs 10 hrs 11 hrs, 2009 0 hrs, 2010
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 6.0 °C (+1.2) 4.5 °C (-0.4) 9.3 °C (+4.5), 2020 2.0 °C (-2.8), 2025
Humidity Range 40% 24% 40%, 2012 8%, 2010
Pressure Range 8 hPa 7 hPa 19 hPa, 2014 2 hPa, 2023
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6 [71%]32 hrs (172%) [54%] 8 [94%], 2023 0 [0%], 2021
Wet Hours 09.5 hrs (76%) [5.7%] 10, 2025 , 2009
Cloud Cover am: Mostly Cloudy transitioned to Sunny
pm: Sunny with periods of Mostly Sunny
Events Lying Snow (at 09z): trace amount
Comments Ly Snow to trace
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 February 2012.
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

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Wind rose