Daily Report for 29th January 2022

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 6.1 °C (+3.1) 23:57 2.8 °C (-0.2) 9.6 °C (+6.6), 2013 -0.8 °C (-3.8), 2019
Maximum Temperature 13.1 °C (+5.3) 12:58 8.1 °C (+0.3) 13.5 °C (+5.7), 2013 1.3 °C (-6.5), 2011
Mean Temperature 10.5 °C (+4.2) 5.5 °C (+0.0) 11.6 °C, 2013 0.7 °C, 2011
Minimum Humidity 65% 17:30 78% 91%, 2014 64%, 2015
Maximum Humidity 92% 00:28 92% 98%, 2010 77%, 2011
Mean Humidity 80% 86% 95%, 2014 74%, 2011
Minimum Pressure 1026 hPa 12:41 1022 hPa 1028 hPa, 2012 976 hPa, 2015
Maximum Pressure 1034 hPa 22:52 1030 hPa 1034 hPa, 2022 999 hPa, 2014
Mean Pressure 1029 hPa 1026 hPa 1030 hPa, 2012 985 hPa, 2015
Mean Wind Speed 8.7 mph (+3.5) 3.8 mph (-1.4) 12.0 mph, 2016 2.9 mph, 2012
Maximum Wind Speed 18.6 mph 15:53 11.3 mph 23.2 mph, 2016 8.5 mph, 2012
Maximum Gust 28.5 mph 10:54 18.6 mph 33.1 mph, 2013 10.5 mph, 2012
Mean Wind Direction WNW
Rainfall 0.0 mm 15.4 mm (28%) 14.0 mm, 2017
Maximum Hourly Rain n/a 4.3, 2017
Maximum 10-min Rain n/a 1.1, 2017
Maximum Rain Rate n/a 10.8, 2017
Minimum Dew Point 2.4 °C 23:57 0.9 °C 7.9 °C, 2024 -4.6 °C, 2010
Maximum Dew Point 9.5 °C 15:09 5.7 °C 12.3 °C, 2013 -2.8 °C, 2011
Mean Dew Point 7.1 °C 3.3 °C 10.2 °C, 2013 -3.3 °C, 2011
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 8.4 °C * 21:01 3.5 °C 10.4 °C, 2018 -0.8 °C, 2019
Day Maximum (09-21) 13.1 °C 12:57 8.0 °C 13.5 °C, 2013 1.3 °C, 2011
Max 10m Temp Rise 0.3 °C 10:16 0.3 °C 0.5 °C, 2017 0.1 °C, 2011
Max 1hr Temp Rise 1.2 °C 10:56 1.2 °C 1.9 °C, 2017 0.3 °C, 2014
Max 1hr Hum Rise 4% 18:28 4% 12%, 2015 1%, 2024
Max 10m Temp Fall 0.3 °C 17:14 0.4 °C 0.9 °C, 2015 0.1 °C, 2011
Max 1hr Temp Fall 1.4 °C 18:35 1.2 °C 2.9 °C, 2019 0.3 °C, 2011
Max 1hr Hum Fall 16% 17:28 6% 16%, 2022 1%, 2011
Max 10m Wind Speed 14.4 mph 15:38 8.7 mph 17.3 mph, 2016 6.4 mph, 2012
Minimum Feels-like 2.8 °C 23:14 -0.4 °C 7.1 °C, 2024 -6.0 °C, 2010
Maximum Feels-like 14.0 °C 12:44 8.0 °C 15.7 °C, 2013 1.2 °C, 2011
Mean Feels-like 10.0 °C 4.2 °C 12.6 °C, 2013 -2.8 °C, 2011
Air-frost Hrs 0 hrs 0.7 hrs 4 hrs, 2019 0 hrs, 2012
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.0 °C (+2.3) 5.3 °C (+0.6) 9.2 °C (+4.5), 2018 1.4 °C (-3.3), 2011
Humidity Range 27% 14% 31%, 2010 4%, 2011
Pressure Range 8 hPa 8 hPa 23 hPa, 2015 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 1.5 [19%]77 hrs (119%) [35%] 8 [100%], 2020 0 [0%], 2011
Wet Hours 019 hrs (30%) [2.7%] 17, 2014 , 2009
Cloud Cover am: Partly Cloudy
pm: Mostly Cloudy
Events None
Comments -
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 4.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 29th January 2022.
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.
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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

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Wind rose