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Daily Report for 25th July 2014

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MeasureValue (anomaly)TimeMonth cumul.Record HighRecord Low
Minimum Temperature16.3 °C (+1.6)05:1614.7 °C (+0.6)19.4 °C (+4.7), 201910.4 °C (-4.3), 2011
Maximum Temperature25.1 °C (+1.8)12:3524.6 °C (+1.6)36.8 °C (+13.5), 201920.2 °C (-3.1), 2023
Mean Temperature19.5 °C (+1.7)19.5 °C (+1.1)28.4 °C, 201915.5 °C, 2015
Minimum Humidity49%13:1543%83%, 202432%, 2012
Maximum Humidity91%23:2288%95%, 200970%, 2011
Mean Humidity79%67%90%, 202150%, 2012
Minimum Pressure1015 hPa18:001012 hPa1019 hPa, 20251004 hPa, 2015
Maximum Pressure1018 hPa15:311017 hPa1023 hPa, 20091011 hPa, 2021
Mean Pressure1016 hPa1015 hPa1020 hPa, 20251009 hPa, 2020
Mean Wind Speed2.8 mph (-1.5)3.7 mph (-0.6)6.8 mph, 20222.3 mph, 2018
Maximum Wind Speed14.3 mph13:1811.6 mph18.7 mph, 20208.1 mph, 2021
Maximum Gust18.7 mph13:1716.9 mph27.4 mph, 201610.7 mph, 2011
Mean Wind Directionn/aSSWN, 2011NNE, 2012
Rainfall9.8 mm47.1 mm (127%)38.4 mm, 20210.0 mm, 2009
Maximum Hourly Rain6.3 mm13:431.0 mm25.5 mm, 20211.0 mm, 2024
Maximum 10-min Rain4.6 mm13:370.6 mm10.4 mm, 20210.3 mm, 2024
Maximum Rain Rate102 mm/h13:3310 mm/h102 mm/h, 20141.4 mm/h, 2024
Minimum Dew Point10.9 °C00:039.3 °C15.1 °C, 20214.3 °C, 2011
Maximum Dew Point18.1 °C18:5015.4 °C21.1 °C, 201911.0 °C, 2011
Mean Dew Point15.6 °C12.5 °C17.4 °C, 20197.5 °C, 2011
MeasureValueTimeMonth cumul.Record HighRecord Low
Night Minimum (21-09)16.3 °C05:1614.8 °C19.4 °C, 201910.4 °C, 2011
Day Maximum (09-21)25.1 °C12:3524.6 °C36.8 °C, 201920.2 °C, 2023
Max 10m Temp Rise0.6 °C08:560.6 °C1.1 °C, 20120.3 °C, 2024
Max 1hr Temp Rise2.4 °C09:352.2 °C4.7 °C, 20121.3 °C, 2024
Max 1hr Hum Rise28%14:1511%28%, 20144%, 2025
Max 10m Temp Fall2.6 °C13:260.7 °C2.6 °C, 20140.4 °C, 2010
Max 1hr Temp Fall5.6 °C14:052.1 °C5.6 °C, 20141.2 °C, 2010
Max 1hr Hum Fall11%10:2212%20%, 20155%, 2021
Max 10m Wind Speed8.9 mph13:268.3 mph12.7 mph, 20163.5 mph, 2009
Minimum Feels-like19.3 °C04:4816.8 °C23.1 °C, 201910.4 °C, 2011
Maximum Feels-like29.7 °C12:1827.4 °C44.6 °C, 201921.8 °C, 2023
Mean Feels-like23.9 °C22.2 °C34.1 °C, 201916.1 °C, 2015
Air-frost Hrs0 hrs0 hrs0 hrs, 20090 hrs, 2009
Minimum PM2.5n/a0.0 µg/m35.7 µg/m3, 20260.0 µg/m3, 2009
Maximum PM2.5n/a0.0 µg/m313.5 µg/m3, 202613.5 µg/m3, 2026
Mean PM2.5n/a0.0 µg/m39.1 µg/m3, 20269.1 µg/m3, 2026
MeasureValue (anomaly)Month cumul.Record HighRecord Low
Temperature Range8.8 °C (+0.2)9.9 °C17.4 °C, 20194.4 °C, 2024
Humidity Range42%44%52%, 200912%, 2024
Pressure Range3 hPa5 hPa13 hPa, 20152 hPa, 2013
ObservationDetail
Sun Hours4 hrs [28%]
Wet Hours2 hrs
Cloud Coveram: Mostly Cloudy transitioned to Partly Cloudy
pm: Mostly Cloudy
EventsLight Thunderstorm
Commentspm H Shs (1330 T w T-S)
Observer Absent?No
Pond Temperature0.0 °C
Notes
Detailed daily weather report for Hampstead, NW3, London on 25th July 2014. Times of extremes use the midpoint of the longest continuous period at that value. Cumulative anomalies are relative to the expected value for the month-to-date. Sun and wet hours are derived from webcam/rainfall analysis and may be adjusted. Data should be viewed with appropriate caution.

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