Washington September Weather Averages

Missouri, United States of America

September Weather Averages for Washington

High Temp28°C82°F
Low Temp16°C61°F
Avg Temp21°C70°F
Sunshine Hours233 hours 
Rainfall112.78 mm4.44 In
Rain days5 days 
Pressure1016 mb30 In

 

Washington September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200925°C / 77°F14°C / 58°F19°C / 67°F269 hours123.57 mm / 4.87 In6 days1017 mb / 31 In
201026°C / 79°F15°C / 59°F20°C / 68°F255 hours194.63 mm / 7.66 In8 days1015 mb / 30 In
201124°C / 75°F13°C / 55°F18°C / 64°F230 hours149.00 mm / 5.87 In8 days1016 mb / 30 In
201225°C / 76°F14°C / 58°F19°C / 66°F228 hours134.56 mm / 5.30 In9 days1016 mb / 30 In
201328°C / 83°F16°C / 61°F22°C / 71°F274 hours49.10 mm / 1.93 In4 days1015 mb / 30 In
201426°C / 79°F14°C / 58°F20°C / 67°F211 hours73.43 mm / 2.89 In6 days1018 mb / 31 In
201528°C / 82°F17°C / 62°F22°C / 71°F198 hours52.90 mm / 2.08 In4 days1017 mb / 31 In
201628°C / 82°F17°C / 63°F22°C / 71°F241 hours183.80 mm / 7.24 In8 days1017 mb / 31 In
201729°C / 83°F16°C / 61°F22°C / 71°F265 hours26.48 mm / 1.04 In2 days1017 mb / 31 In
201828°C / 82°F17°C / 63°F22°C / 72°F224 hours109.83 mm / 4.32 In5 days1017 mb / 31 In
201929°C / 84°F19°C / 65°F23°C / 74°F243 hours65.03 mm / 2.56 In6 days1016 mb / 30 In
202026°C / 78°F15°C / 59°F20°C / 69°F212 hours34.17 mm / 1.35 In3 days1017 mb / 31 In
202130°C / 85°F17°C / 63°F23°C / 73°F240 hours48.00 mm / 1.89 In4 days1015 mb / 30 In
202228°C / 83°F15°C / 60°F21°C / 70°F255 hours37.10 mm / 1.46 In5 days1016 mb / 30 In
202331°C / 87°F15°C / 59°F22°C / 72°F257 hours52.68 mm / 2.07 In3 days1016 mb / 30 In
202427°C / 81°F16°C / 61°F21°C / 70°F193 hours94.24 mm / 3.71 In3 days1016 mb / 30 In
202528°C / 82°F17°C / 62°F22°C / 72°F194 hours559.70 mm / 22.04 In4 days1017 mb / 31 In
202631°C / 87°F20°C / 67°F25°C / 76°F199 hours41.90 mm / 1.65 In10 days1016 mb / 30 In

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Washington weather history: common questions

How far back does Washington 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 Washington 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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