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Daily Report for 14th August 2018

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MeasureValue (anomaly)TimeMonth cumul.Record HighRecord Low
Minimum Temperature14.1 °C (-0.2)06:2514.7 °C (+0.3)18.1 °C (+3.8), 202210.6 °C (-3.7), 2017
Maximum Temperature24.7 °C (+2.1)15:3225.8 °C (+2.8)34.9 °C (+12.3), 202617.0 °C (-5.6), 2019
Mean Temperature19.3 °C (+0.9)20.3 °C (+1.5)27.5 °C, 202614.8 °C, 2010
Minimum Humidity50%15:3445%85%, 202029%, 2022
Maximum Humidity86%06:3289%95%, 200967%, 2016
Mean Humidity70%68%91%, 202047%, 2026
Minimum Pressure1012 hPa00:051014 hPa1023 hPa, 20161005 hPa, 2011
Maximum Pressure1019 hPa23:181020 hPa1026 hPa, 20161009 hPa, 2015
Mean Pressure1016 hPa1017 hPa1024 hPa, 20161006 hPa, 2015
Mean Wind Speed5.1 mph (+1.1)3.6 mph (-0.4)5.9 mph, 20230.7 mph, 2024
Maximum Wind Speed11.9 mph22:1911.7 mph17.2 mph, 20237.1 mph, 2024
Maximum Gust19.6 mph22:3718.8 mph23.0 mph, 201910.4 mph, 2024
Mean Wind Directionn/aSWN, 2010N, 2024
Rainfall0.0 mm24.8 mm (102%)13.4 mm, 20190.0 mm, 2009
Maximum Hourly Rainn/a0.8 mm4.8 mm, 20190.3 mm, 2012
Maximum 10-min Rainn/a0.5 mm2.5 mm, 20100.3 mm, 2012
Maximum Rain Raten/a12 mm/h42 mm/h, 20140.5 mm/h, 2020
Minimum Dew Point11.5 °C05:3411.2 °C15.6 °C, 20205.7 °C, 2017
Maximum Dew Point15.6 °C17:5316.3 °C19.0 °C, 20249.8 °C, 2016
Mean Dew Point13.4 °C13.7 °C17.0 °C, 20248.7 °C, 2016
MeasureValueTimeMonth cumul.Record HighRecord Low
Night Minimum (21-09)14.1 °C06:2214.9 °C18.1 °C, 202210.6 °C, 2017
Day Maximum (09-21)24.7 °C15:3325.6 °C34.9 °C, 202616.9 °C, 2019
Max 10m Temp Rise0.8 °C11:100.7 °C1.1 °C, 20090.3 °C, 2020
Max 1hr Temp Rise2.1 °C11:112.7 °C4.7 °C, 20260.9 °C, 2020
Max 1hr Hum Rise6%19:3313%16%, 20142%, 2020
Max 10m Temp Fall0.5 °C19:000.7 °C1.3 °C, 20090.2 °C, 2020
Max 1hr Temp Fall1.8 °C21:462.4 °C3.3 °C, 20220.6 °C, 2020
Max 1hr Hum Fall12%12:4515%19%, 20134%, 2020
Max 10m Wind Speed9.6 mph23:468.7 mph11.4 mph, 20234.2 mph, 2020
Minimum Feels-like16.2 °C06:0717.3 °C22.1 °C, 202410.6 °C, 2017
Maximum Feels-like28.7 °C17:1729.1 °C40.0 °C, 202621.4 °C, 2010
Mean Feels-like22.3 °C23.6 °C31.3 °C, 202617.5 °C, 2010
Air-frost Hrs0 hrs0 hrs0 hrs, 20090 hrs, 2009
Minimum PM2.5n/a0.0 µg/m34.0 µg/m3, 20260.0 µg/m3, 2009
Maximum PM2.5n/a0.0 µg/m324.7 µg/m3, 202624.7 µg/m3, 2026
Mean PM2.5n/a0.0 µg/m312.5 µg/m3, 202612.5 µg/m3, 2026
MeasureValue (anomaly)Month cumul.Record HighRecord Low
Temperature Range10.6 °C (+2.3)11.1 °C16.8 °C, 20262.5 °C, 2020
Humidity Range36%44%47%, 20229%, 2020
Pressure Range7 hPa6 hPa10 hPa, 20192 hPa, 2012
ObservationDetail
Sun Hours4.3 hrs [32%]
Wet Hours0 hrs
Cloud Coveram: Overcast with periods of Partly Cloudy
pm: Partly Cloudy
EventsNone
Comments-
Observer Absent?Yes - observations may be unreliable
Pond Temperature0.0 °C
Notes
Detailed daily weather report for Hampstead, NW3, London on 14th August 2018. 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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