Seattle August Weather Averages

Washington, United States of America

August Weather Averages for Seattle

High Temp26°C79°F
Low Temp14°C58°F
Avg Temp20°C67°F
Sunshine Hours263 hours 
Rainfall30.77 mm1.21 In
Rain days3 days 
Pressure1016 mb30 In

 

Seattle August Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200925°C / 77°F13°C / 56°F19°C / 66°F283 hours41.10 mm / 1.62 In4 days1017 mb / 31 In
201025°C / 76°F13°C / 55°F18°C / 65°F291 hours56.20 mm / 2.21 In4 days1015 mb / 30 In
201124°C / 76°F13°C / 55°F18°C / 65°F311 hours10.50 mm / 0.41 In1 days1016 mb / 30 In
201226°C / 79°F14°C / 57°F19°C / 67°F318 hours2.00 mm / 0.08 In0 days1016 mb / 30 In
201326°C / 79°F14°C / 58°F20°C / 67°F267 hours38.60 mm / 1.52 In3 days1015 mb / 30 In
201427°C / 80°F15°C / 59°F20°C / 69°F294 hours34.70 mm / 1.37 In5 days1016 mb / 30 In
201525°C / 77°F14°C / 57°F19°C / 67°F246 hours48.83 mm / 1.92 In6 days1015 mb / 30 In
201625°C / 76°F14°C / 57°F19°C / 66°F245 hours17.98 mm / 0.71 In4 days1017 mb / 30 In
201729°C / 84°F16°C / 60°F22°C / 71°F319 hours15.10 mm / 0.59 In2 days1016 mb / 30 In
201827°C / 81°F15°C / 59°F21°C / 69°F264 hours13.40 mm / 0.53 In1 days1017 mb / 30 In
201926°C / 79°F15°C / 59°F20°C / 68°F226 hours14.70 mm / 0.58 In3 days1016 mb / 30 In
202026°C / 78°F14°C / 58°F20°C / 68°F250 hours23.20 mm / 0.91 In3 days1016 mb / 30 In
202126°C / 78°F15°C / 59°F20°C / 68°F227 hours40.00 mm / 1.57 In5 days1015 mb / 30 In
202229°C / 84°F15°C / 58°F21°C / 70°F282 hours13.70 mm / 0.54 In2 days1015 mb / 30 In
202327°C / 81°F14°C / 58°F20°C / 68°F226 hours32.60 mm / 1.28 In3 days1016 mb / 30 In
202425°C / 78°F13°C / 55°F18°C / 65°F225 hours44.46 mm / 1.75 In3 days1016 mb / 30 In
202524°C / 76°F16°C / 61°F20°C / 68°F151 hours53.50 mm / 2.11 In3 days1018 mb / 31 In
202625°C / 77°F15°C / 60°F20°C / 67°F312 hours53.30 mm / 2.10 In1 days1016 mb / 30 In

Need more than one day of Seattle history?

Download historical weather for Seattle, or any other location, in CSV from January 2009 onwards. Ideal for research, insurance, energy, agriculture and machine-learning projects.

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Seattle weather history: common questions

How far back does Seattle weather history go?

Hourly historical weather is available from 1 January 2009. Choose a date above, or pick a month at the top of the page for long-term averages.

Can I download Seattle historical weather as a file?

Yes. Buy historical weather data as daily or hourly CSV, yearly monthly averages or monthly climate averages. A free sample download is available.

Is there an API for historical weather?

Yes. The WeatherAPI.com History API returns hourly weather for any past date from 2010, as JSON or XML. Get a free API key.

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