Daily Report for 3rd June 2012

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 9.6 °C (-1.5) 23:48 11.4 °C (+0.3) 16.5 °C (+5.4), 2021 6.9 °C (-4.2), 2013
Maximum Temperature 11.5 °C (-8.2) 04:18 16.8 °C (-3.0) 26.9 °C (+7.2), 2018 11.5 °C (-8.2), 2012
Mean Temperature 10.8 °C (-4.9) 13.7 °C (-1.3) 20.7 °C, 2018 10.8 °C, 2012
Minimum Humidity 88% 00:02 64% 88%, 2012 33%, 2010
Maximum Humidity 98% 23:59 95% 98%, 2012 70%, 2009
Mean Humidity 96% 83% 96%, 2012 54%, 2015
Minimum Pressure 1005 hPa 05:54 1011 hPa 1030 hPa, 2013 1005 hPa, 2012
Maximum Pressure 1008 hPa 12:00 1015 hPa 1034 hPa, 2011 1008 hPa, 2012
Mean Pressure 1006 hPa 1013 hPa 1031 hPa, 2013 1006 hPa, 2012
Mean Wind Speed 5.1 mph (+0.7) 4.7 mph (+0.3) 7.0 mph, 2019 2.7 mph, 2018
Maximum Wind Speed 10.0 mph 10.2 mph 16.1 mph, 2011 10.0 mph, 2012
Maximum Gust 15.6 mph 19:26 14.7 mph 24.2 mph, 2020 13.8 mph, 2018
Mean Wind Direction E
Rainfall 18.8 mm 21.7 mm (462%) 18.8 mm, 2012
Maximum Hourly Rain 4.8 mm 02:23 4.8 mm, 2012
Maximum 10-min Rain 2.3 mm 02:08 2.3 mm, 2012
Maximum Rain Rate 30 mm/h 02:09 30 mm/h, 2012
Minimum Dew Point 9.3 °C 00:01 8.2 °C 12.1 °C, 2021 2.0 °C, 2010
Maximum Dew Point 10.9 °C 04:18 12.3 °C 16.3 °C, 2021 7.7 °C, 2013
Mean Dew Point 10.2 °C 10.7 °C 14.8 °C, 2021 5.0 °C, 2013
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) * 10.7 °C * 09:00 12.0 °C 18.1 °C, 2021 6.9 °C, 2013
Day Maximum (09-21) * 11.2 °C * 14:51 16.7 °C 26.9 °C, 2018 11.2 °C, 2012
Max 10m Temp Rise 0.2 °C 12:23 0.4 °C 1.7 °C, 2010 0.2 °C, 2012
Max 1hr Temp Rise 0.3 °C 03:51 1.4 °C 3.0 °C, 2014 0.3 °C, 2012
Max 1hr Hum Rise 5% 01:01 10% 18%, 2017 3%, 2016
Max 10m Temp Fall 0.2 °C 15:51 0.4 °C 1.7 °C, 2010 0.2 °C, 2012
Max 1hr Temp Fall 0.4 °C 06:18 1.3 °C 3.0 °C, 2010 0.4 °C, 2012
Max 1hr Hum Fall 1% 10:55 9% 18%, 2013 1%, 2012
Max 10m Wind Speed 6.8 mph 00:54 6.9 mph 10.5 mph, 2011 6.8 mph, 2012
Minimum Feels-like 7.5 °C 23:53 11.6 °C 18.8 °C, 2021 5.1 °C, 2023
Maximum Feels-like 13.2 °C 04:13 18.4 °C 29.6 °C, 2018 13.2 °C, 2012
Mean Feels-like 12.1 °C 15.3 °C 24.5 °C, 2021 10.7 °C, 2016
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 1.9 °C (-6.7) 5.4 °C (-3.2) 14.7 °C (+6.1), 2010 1.9 °C (-6.7), 2012
Humidity Range 10% 31% 54%, 2018 10%, 2012
Pressure Range 3 hPa 4 hPa 15 hPa, 2015 2 hPa, 2009
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 0 [0%]3 hrs (16%) [6.7%] 14.9 [100%], 2010 0 [0%], 2012
Wet Hours 20
[Mean rain rate: 0.9 mm/h]		27 hrs (730%) [38%] 20, 2012 0, 2009
Cloud Cover Overcast
Events None
Comments 00-00 Light-Moderate Rain/Drizzle, Moderate-Heavy Showers (excl 11-15)
Extra Comments
Issues None known
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 3rd June 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

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Webcam Summary of Cloud Conditions

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Wind rose