Daily Report for 3rd March 2015

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 3.6 °C (+0.2) 02:33 3.7 °C (+0.2) 8.8 °C (+5.4), 2019 -1.9 °C (-5.3), 2013
Maximum Temperature 8.8 °C (-0.8) 15:08 9.4 °C (-0.3) 13.9 °C (+4.3), 2012 3.3 °C (-6.3), 2018
Mean Temperature 5.6 °C (-0.3) 6.5 °C (-0.0) 10.7 °C, 2019 1.8 °C, 2018
Minimum Humidity 42% 15:03 42% 93%, 2021 41%, 2012
Maximum Humidity 81% 09:07 87% 97%, 2021 81%, 2015
Mean Humidity 63% 64% 95%, 2021 63%, 2015
Minimum Pressure 1011 hPa 07:04 1002 hPa 1034 hPa, 2011 982 hPa, 2014
Maximum Pressure 1021 hPa 22:55 1013 hPa 1035 hPa, 2011 993 hPa, 2018
Mean Pressure 1015 hPa 1007 hPa 1034 hPa, 2011 985 hPa, 2014
Mean Wind Speed 7.4 mph (+2.2) 8.7 mph (+3.5) 10.5 mph, 2019 0.3 mph, 2021
Maximum Wind Speed 17.5 mph 14:57 20.1 mph 28.1 mph, 2019 7.0 mph, 2022
Maximum Gust 28.4 mph 14:57 31.1 mph 39.2 mph, 2019 10.3 mph, 2021
Mean Wind Direction WSW
Rainfall 0.0 mm 3.3 mm (87%) 6.5 mm, 2021
Maximum Hourly Rain n/a 2.9, 2021
Maximum 10-min Rain n/a 1.2, 2021
Maximum Rain Rate n/a 7.2, 2021
Minimum Dew Point -3.8 °C 17:23 -3.5 °C 5.4 °C, 2019 -4.2 °C, 2013
Maximum Dew Point 3.1 °C 09:39 4.9 °C 10.2 °C, 2019 0.9 °C, 2011
Mean Dew Point -1.1 °C -0.2 °C 8.4 °C, 2019 -1.1 °C, 2015
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 3.6 °C 02:33 4.5 °C 9.4 °C, 2019 -1.9 °C, 2013
Day Maximum (09-21) 8.8 °C 15:08 9.4 °C 13.9 °C, 2012 3.1 °C, 2018
Max 10m Temp Rise 0.5 °C 09:35 0.5 °C 0.7 °C, 2014 0.2 °C, 2011
Max 1hr Temp Rise 1.5 °C 10:06 1.4 °C 2.8 °C, 2014 0.5 °C, 2018
Max 1hr Hum Rise 11% 15:52 14% 11%, 2015 2%, 2021
Max 10m Temp Fall 1.2 °C 15:25 0.8 °C 1.2 °C, 2015 0.2 °C, 2010
Max 1hr Temp Fall 1.9 °C 15:38 1.8 °C 2.5 °C, 2012 0.4 °C, 2018
Max 1hr Hum Fall 17% 11:29 19% 27%, 2012 2%, 2021
Max 10m Wind Speed 13.9 mph 16:34 15.8 mph 20.7 mph, 2019 3.7 mph, 2021
Minimum Feels-like -0.8 °C 23:49 -0.9 °C 5.3 °C, 2012 -5.8 °C, 2018
Maximum Feels-like 6.3 °C 14:28 8.0 °C 14.0 °C, 2012 1.7 °C, 2011
Mean Feels-like 2.4 °C 3.4 °C 10.6 °C, 2019 -2.5 °C, 2018
Air-frost Hrs 0 hrs 0 hrs 7 hrs, 2013 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 5.2 °C (-1.0) 5.7 °C (-0.5) 9.9 °C (+3.7), 2013 2.4 °C (-3.8), 2023
Humidity Range 39% 45% 55%, 2012 4%, 2021
Pressure Range 10 hPa 11 hPa 29 hPa, 2009 1 hPa, 2011
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6 [61%]20 hrs (198%) [68%] 6.5 [66%], 2016 0 [0%], 2017
Wet Hours 0.20.7 hrs (14%) [1%] 8, 2019 , 2009
Cloud Cover Partly Cloudy
Events None
Comments 15 Shower
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 March 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.
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Daily Graph of Conditions

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Webcam Summary of Cloud Conditions

daycamsumLarge resolution version

Wind rose