Daily Report for 12th June 2010

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 10.0 °C (-1.7) 05:54 11.5 °C (+0.2) 16.6 °C (+4.9), 2023 7.2 °C (-4.5), 2009
Maximum Temperature 19.6 °C (-1.1) 16:43 21.2 °C (+1.0) 28.8 °C (+8.1), 2023 13.3 °C (-7.4), 2012
Mean Temperature 14.6 °C (-1.4) 15.8 °C (+0.6) 22.1 °C, 2023 11.2 °C, 2012
Minimum Humidity 49% 17:02 55% 72%, 2016 35%, 2014
Maximum Humidity 84% 06:42 90% 98%, 2012 70%, 2017
Mean Humidity 68% 75% 88%, 2019 55%, 2014
Minimum Pressure 1012 hPa 03:30 1011 hPa 1026 hPa, 2014 1003 hPa, 2012
Maximum Pressure 1019 hPa 23:14 1016 hPa 1029 hPa, 2014 1010 hPa, 2016
Mean Pressure 1016 hPa 1013 hPa 1028 hPa, 2014 1007 hPa, 2020
Mean Wind Speed 3.2 mph (-1.2) 3.7 mph (-0.7) 7.9 mph, 2013 0.9 mph, 2014
Maximum Wind Speed 8.9 mph 9.7 mph 25.8 mph, 2023 5.6 mph, 2014
Maximum Gust 12.8 mph 11:32 14.1 mph 41.5 mph, 2023 8.7 mph, 2014
Mean Wind Direction NNW
Rainfall 0.0 mm 18.9 mm (101%) 13.9 mm, 2023
Maximum Hourly Rain n/a 13.9, 2023
Maximum 10-min Rain n/a 13, 2023
Maximum Rain Rate n/a 120, 2023
Minimum Dew Point 7.1 °C 13:26 8.1 °C 13.1 °C, 2023 2.9 °C, 2009
Maximum Dew Point 10.6 °C 11:35 13.7 °C 21.2 °C, 2023 9.8 °C, 2017
Mean Dew Point 8.6 °C 10.9 °C 17.0 °C, 2023 6.6 °C, 2009
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 10.0 °C 11.6 °C 16.6 °C, 2023 7.2 °C, 2009
Day Maximum (09-21) 19.6 °C 21.2 °C 28.8 °C, 2023 13.3 °C, 2012
Max 10m Temp Rise 0.6 °C 15:34 0.7 °C 0.8 °C, 2023 0.3 °C, 2013
Max 1hr Temp Rise 1.7 °C 15:57 2.2 °C 3.8 °C, 2023 1.2 °C, 2013
Max 1hr Hum Rise 8% 22:15 8% 30%, 2023 3%, 2012
Max 10m Temp Fall 0.5 °C 17:18 0.7 °C 4.1 °C, 2023 0.3 °C, 2012
Max 1hr Temp Fall 1.7 °C 21:15 1.8 °C 7.2 °C, 2023 0.6 °C, 2012
Max 1hr Hum Fall 9% 16:18 11% 20%, 2023 5%, 2016
Max 10m Wind Speed n/a 11:50 0.0 mph 14.2, 2023 3.6, 2014
Minimum Feels-like 10.1 °C 05:39 12.2 °C 20.3 °C, 2023 7.2 °C, 2011
Maximum Feels-like 20.7 °C 16:40 23.8 °C 35.9 °C, 2023 14.4 °C, 2012
Mean Feels-like 15.3 °C 17.6 °C 27.5 °C, 2023 12.0 °C, 2012
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 9.6 °C (+0.6) 9.6 °C (+0.9) 13.4 °C (+4.4), 2009 2.5 °C (-6.5), 2013
Humidity Range 35% 35% 46%, 2014 15%, 2016
Pressure Range 7 hPa 5 hPa 13 hPa, 2012 2 hPa, 2023
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 4 [27%]69 hrs (89%) [38%] 13 [86%], 2014 0 [0%], 2012
Wet Hours 015 hrs (101%) [5.2%] 8, 2011 0, 2009
Cloud Cover Partly Cloudy
Events None
Comments -
Extra Comments
Issues No wind data due to house move - Mean values based on Heathrow; Speed and Gust regressionaly derived from the Mean
Observer Absent? Yes - observations may be unreliable
Pond Temperature (Heath) 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 12th June 2010.
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

day graph

Webcam Summary of Cloud Conditions


Webcam summary not available for this day

Wind rose