Daily Report for 23rd March 2014

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Measure Value (anomaly) Time Month cumul. Record High Record Low
Minimum Temperature 2.6 °C (-2.2) 06:23 5.1 °C (+1.0) 9.2 °C (+4.4), 2023 0.4 °C (-4.4), 2013
Maximum Temperature 10.0 °C (-1.7) 14:11 13.5 °C (+2.9) 19.5 °C (+7.8), 2012 2.6 °C (-9.1), 2013
Mean Temperature 6.1 °C (-1.9) 9.1 °C (+1.9) 12.5 °C, 2012 0.9 °C, 2013
Minimum Humidity 42% 17:50 50% 89%, 2013 36%, 2022
Maximum Humidity 83% 07:15 88% 98%, 2010 76%, 2020
Mean Humidity 66% 71% 96%, 2013 64%, 2020
Minimum Pressure 1002 hPa 00:09 1013 hPa 1038 hPa, 2011 995 hPa, 2023
Maximum Pressure 1013 hPa 22:40 1020 hPa 1042 hPa, 2011 1000 hPa, 2023
Mean Pressure 1007 hPa 1016 hPa 1040 hPa, 2011 998 hPa, 2023
Mean Wind Speed 5.6 mph (+0.4) 5.1 mph (-0.1) 10.5 mph, 2023 0.8 mph, 2022
Maximum Wind Speed 15.2 mph 14:22 13.5 mph 23.2 mph, 2023 5.8 mph, 2016
Maximum Gust 21.9 mph 12:47 19.0 mph 34.6 mph, 2023 8.7 mph, 2012
Mean Wind Direction WNW
Rainfall trace 19.0 mm (66%) 6.8, 2013
Maximum Hourly Rain n/a 1.4, 2010
Maximum 10-min Rain n/a 0.5, 2009
Maximum Rain Rate n/a 3, 2017
Minimum Dew Point -3.4 °C 17:50 1.0 °C 6.5 °C, 2023 -3.4 °C, 2014
Maximum Dew Point 2.8 °C 10:03 6.8 °C 10.1 °C, 2025 1.1 °C, 2013
Mean Dew Point -0.1 °C 3.8 °C 8.3 °C, 2025 -0.1 °C, 2014
Measure Value Time Month cumul. Record High Record Low
Night Minimum (21-09) 2.6 °C 06:23 5.2 °C 9.2 °C, 2023 0.4 °C, 2013
Day Maximum (09-21) 10.0 °C 14:11 13.5 °C 19.5 °C, 2012 0.9 °C, 2013
Max 10m Temp Rise 0.7 °C 07:42 0.6 °C 0.8 °C, 2009 0.1 °C, 2013
Max 1hr Temp Rise 2.8 °C 08:14 2.5 °C 3.8 °C, 2011 0.3 °C, 2013
Max 1hr Hum Rise 12% 19:31 9% 15%, 2015 3%, 2013
Max 10m Temp Fall 1.1 °C 15:05 0.5 °C 1.1 °C, 2014 0.2 °C, 2010
Max 1hr Temp Fall 1.9 °C 15:10 1.6 °C 2.8 °C, 2009 0.7 °C, 2013
Max 1hr Hum Fall 16% 12:38 13% 19%, 2018 1%, 2013
Max 10m Wind Speed 10.9 mph 14:31 10.1 mph 17.8 mph, 2023 3.9 mph, 2016
Minimum Feels-like -1.3 °C 05:32 2.6 °C 5.4 °C, 2023 -6.1 °C, 2013
Maximum Feels-like 10.0 °C 14:09 13.5 °C 19.5 °C, 2012 1.0 °C, 2013
Mean Feels-like 3.7 °C 8.1 °C 12.5 °C, 2012 -3.4 °C, 2013
Air-frost Hrs 0 hrs 0 hrs 0 hrs, 2009 0 hrs, 2009
Measure Value (anomaly) Month cumul. Record High Record Low
Temperature Range 7.4 °C (+0.5) 8.4 °C (+1.9) 13.9 °C (+7.0), 2012 2.2 °C (-4.7), 2013
Humidity Range 41% 38% 56%, 2012 9%, 2013
Pressure Range 11 hPa 8 hPa 17 hPa, 2009 2 hPa, 2012
Measure Value [% of max] Month cumul. Record High Record Low
Sun Hours 6 [54%]127 hrs (155%) [53%] 11.2 [101%], 2020 0 [0%], 2013
Wet Hours 0.217 hrs (43%) [3.1%] 18, 2013 , 2009
Cloud Cover Partly Cloudy with periods of Mostly Sunny
Events None
Comments 11, 15 brief Moderate Showers
Extra Comments
Issues None known
Observer Absent? No
Pond Temperature @ Hampstead Heath 0.0 °C
Notes
Detailed daily weather report for Hampstead nw3 in London on 23rd March 2014.
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