Washington September Weather Averages

Pennsylvania, United States of America

September Weather Averages for Washington

High Temp24°C76°F
Low Temp14°C57°F
Avg Temp19°C65°F
Sunshine Hours198 hours 
Rainfall122.93 mm4.84 In
Rain days7 days 
Pressure1018 mb31 In

 

Washington September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200923°C / 74°F13°C / 56°F18°C / 64°F174 hours80.93 mm / 3.19 In6 days1018 mb / 31 In
201024°C / 76°F13°C / 56°F19°C / 65°F260 hours73.93 mm / 2.91 In5 days1015 mb / 30 In
201123°C / 74°F14°C / 56°F18°C / 64°F165 hours170.42 mm / 6.71 In14 days1015 mb / 30 In
201223°C / 73°F12°C / 54°F17°C / 63°F222 hours168.73 mm / 6.64 In8 days1016 mb / 30 In
201323°C / 73°F12°C / 54°F17°C / 63°F202 hours63.32 mm / 2.49 In5 days1017 mb / 30 In
201424°C / 75°F12°C / 54°F18°C / 64°F248 hours33.60 mm / 1.32 In5 days1019 mb / 31 In
201525°C / 77°F15°C / 58°F19°C / 67°F173 hours129.96 mm / 5.12 In7 days1018 mb / 31 In
201627°C / 80°F15°C / 59°F20°C / 69°F233 hours87.56 mm / 3.45 In8 days1018 mb / 31 In
201724°C / 76°F14°C / 58°F19°C / 66°F252 hours52.07 mm / 2.05 In4 days1018 mb / 31 In
201825°C / 77°F16°C / 62°F20°C / 68°F166 hours284.69 mm / 11.21 In16 days1020 mb / 31 In
201926°C / 79°F16°C / 60°F20°C / 69°F232 hours61.97 mm / 2.44 In8 days1018 mb / 31 In
202023°C / 74°F14°C / 56°F18°C / 65°F226 hours55.00 mm / 2.17 In4 days1018 mb / 31 In
202124°C / 76°F14°C / 57°F19°C / 65°F213 hours164.00 mm / 6.46 In8 days1017 mb / 30 In
202224°C / 75°F13°C / 56°F18°C / 65°F180 hours97.80 mm / 3.85 In10 days1018 mb / 31 In
202325°C / 77°F13°C / 55°F18°C / 65°F176 hours26.87 mm / 1.06 In0 days1018 mb / 31 In
202425°C / 77°F14°C / 57°F19°C / 66°F175 hours166.49 mm / 6.55 In7 days1018 mb / 31 In
202523°C / 74°F14°C / 57°F18°C / 65°F134 hours321.00 mm / 12.64 In4 days1018 mb / 31 In
202624°C / 76°F15°C / 60°F20°C / 67°F132 hours174.40 mm / 6.87 In15 days1018 mb / 31 In

Need more than one day of Washington history?

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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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