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Daily Report for 23rd August 2010

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MeasureValue (anomaly)TimeMonth cumul.Record HighRecord Low
Minimum Temperature14.4 °C (+0.7)23:5413.9 °C (-0.4)18.2 °C (+4.4), 20229.3 °C (-4.4), 2014
Maximum Temperature20.1 °C (-2.0)14:5121.1 °C (-1.7)29.6 °C (+7.5), 201616.4 °C (-5.7), 2011
Mean Temperature18.0 °C (-0.7)17.5 °C (-1.0)22.3 °C, 201614.2 °C, 2014
Minimum Humidity58%20:0155%73%, 201133%, 2016
Maximum Humidity96%05:2889%96%, 201074%, 2009
Mean Humidity82%74%88%, 201157%, 2014
Minimum Pressure997 hPa07:001012 hPa1026 hPa, 2021997 hPa, 2010
Maximum Pressure1006 hPa00:261016 hPa1031 hPa, 20211006 hPa, 2010
Mean Pressure1002 hPa1014 hPa1029 hPa, 20211002 hPa, 2010
Mean Wind Speed7.4 mph (+3.4)5.0 mph (+1.0)7.5 mph, 20241.9 mph, 2019
Maximum Wind Speed22.5 mph12.5 mph22.5 mph, 20108.3 mph, 2019
Maximum Gust30.0 mph15:1418.5 mph30.0 mph, 201011.5 mph, 2019
Mean Wind Directionn/aWSWWNW, 2014NNE, 2011
Rainfall21.0 mm67.8 mm (169%)21.0 mm, 20100.0 mm, 2009
Maximum Hourly Rain5.2 mm02:431.3 mm5.8 mm, 20150.7 mm, 2018
Maximum 10-min Rain2.2 mm06:520.8 mm3.4 mm, 20150.4 mm, 2018
Maximum Rain Rate30 mm/h06:4913 mm/h54 mm/h, 20152.4 mm/h, 2024
Minimum Dew Point9.7 °C21:3310.1 °C16.8 °C, 20222.7 °C, 2014
Maximum Dew Point17.4 °C05:5214.9 °C19.9 °C, 20228.1 °C, 2014
Mean Dew Point14.8 °C12.5 °C18.2 °C, 20225.4 °C, 2014
MeasureValueTimeMonth cumul.Record HighRecord Low
Night Minimum (21-09)17.1 °C14.1 °C18.6 °C, 20189.3 °C, 2014
Day Maximum (09-21)20.1 °C21.1 °C29.6 °C, 201615.6 °C, 2011
Max 10m Temp Rise0.5 °C12:100.6 °C1.0 °C, 20260.2 °C, 2011
Max 1hr Temp Rise1.7 °C13:002.1 °C4.2 °C, 20260.7 °C, 2011
Max 1hr Hum Rise12%14:1410%21%, 20264%, 2017
Max 10m Temp Fall0.5 °C13:360.5 °C1.0 °C, 20140.3 °C, 2013
Max 1hr Temp Fall1.6 °C14:111.7 °C3.4 °C, 20231.2 °C, 2017
Max 1hr Hum Fall13%15:3411%24%, 20168%, 2020
Max 10m Wind Speed13.4 mph15:209.0 mph14.4 mph, 20245.9 mph, 2019
Minimum Feels-like15.8 °C23:5015.8 °C23.4 °C, 20228.0 °C, 2014
Maximum Feels-like24.6 °C15:2223.9 °C32.5 °C, 202318.9 °C, 2014
Mean Feels-like21.9 °C20.1 °C27.6 °C, 202214.2 °C, 2014
Air-frost Hrs0 hrs0 hrs0 hrs, 20090 hrs, 2009
Minimum PM2.5n/a0.0 µg/m34.5 µg/m3, 20260.0 µg/m3, 2009
Maximum PM2.5n/a0.0 µg/m312.5 µg/m3, 202612.5 µg/m3, 2026
Mean PM2.5n/a0.0 µg/m37.4 µg/m3, 20267.4 µg/m3, 2026
MeasureValue (anomaly)Month cumul.Record HighRecord Low
Temperature Range5.7 °C (-2.6)7.2 °C16.2 °C, 20162.7 °C, 2011
Humidity Range38%33%57%, 201622%, 2011
Pressure Range9 hPa4 hPa11 hPa, 20092 hPa, 2025
ObservationDetail
Sun Hours3 hrs [23%]
Wet Hours7 hrs
Cloud Coveram: Mostly Cloudy
pm: Mostly Cloudy transitioned to Mostly Sunny
EventsNone
Comments00-05 H Rn; 07? 1330? 14 H Shwrs
Observer Absent?No
Pond Temperature0.0 °C
Notes
Detailed daily weather report for Hampstead, NW3, London on 23rd August 2010. 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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