Washington September Weather Averages

Tyne and Wear, United Kingdom

September Weather Averages for Washington

High Temp16°C62°F
Low Temp11°C52°F
Avg Temp14°C57°F
Sunshine Hours139 hours 
Rainfall54.97 mm2.16 In
Rain days6 days 
Pressure1014 mb30 In

 

Washington September Averages Year by Year

YearHigh TempLow TempAvg TempSunshine HoursRainfallRain daysPressure
200916°C / 61°F11°C / 52°F13°C / 56°F139 hours43.15 mm / 1.70 In4 days1020 mb / 31 In
201016°C / 60°F10°C / 51°F13°C / 56°F163 hours63.40 mm / 2.50 In9 days1013 mb / 30 In
201117°C / 62°F11°C / 52°F14°C / 57°F151 hours39.56 mm / 1.56 In9 days1009 mb / 30 In
201216°C / 60°F10°C / 49°F13°C / 55°F183 hours95.78 mm / 3.77 In6 days1011 mb / 30 In
201316°C / 60°F10°C / 50°F13°C / 55°F159 hours34.80 mm / 1.37 In5 days1014 mb / 30 In
201417°C / 62°F11°C / 52°F14°C / 57°F161 hours22.10 mm / 0.87 In2 days1019 mb / 31 In
201515°C / 59°F10°C / 50°F12°C / 54°F114 hours32.70 mm / 1.29 In5 days1017 mb / 30 In
201618°C / 65°F12°C / 54°F15°C / 59°F148 hours36.10 mm / 1.42 In5 days1014 mb / 30 In
201716°C / 61°F11°C / 52°F14°C / 57°F92 hours79.51 mm / 3.13 In8 days1011 mb / 30 In
201816°C / 61°F11°C / 52°F14°C / 57°F142 hours53.88 mm / 2.12 In6 days1017 mb / 31 In
201916°C / 61°F11°C / 52°F14°C / 57°F138 hours63.94 mm / 2.52 In6 days1014 mb / 30 In
202016°C / 60°F10°C / 51°F13°C / 56°F107 hours60.40 mm / 2.38 In6 days1016 mb / 30 In
202117°C / 63°F12°C / 53°F14°C / 58°F151 hours49.87 mm / 1.96 In8 days1017 mb / 31 In
202217°C / 62°F12°C / 53°F14°C / 57°F104 hours81.70 mm / 3.22 In10 days1013 mb / 30 In
202317°C / 63°F13°C / 55°F15°C / 59°F147 hours61.82 mm / 2.43 In3 days1012 mb / 30 In
202415°C / 58°F11°C / 51°F13°C / 55°F138 hours59.78 mm / 2.35 In2 days1015 mb / 30 In
202516°C / 61°F11°C / 52°F14°C / 57°F133 hours65.00 mm / 2.56 In3 days1012 mb / 30 In
202619°C / 66°F12°C / 54°F15°C / 59°F125 hours46.00 mm / 1.81 In10 days1015 mb / 30 In

Need more than one day of Washington history?

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

  • Historical weatherDaily and hourly interval data.
  • Yearly monthly averagesMonthly averages for every year since 2009.
  • Monthly climate averagesLong-term climate normals by month.
  • CSV formatReady for Excel, Python, R or your database.
Buy historical weather data Or use the History API

Hotels near Washington

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.

Quick and Easy Signup for Weather API

WeatherAPI.com makes it super easy to integrate our realtime, daily, hourly and 15 min interval weather forecast data, historical weather, marine weather, bulk request, air quality data, pollen, evapotranspiration, autocomplete, time zone, astronomy and sports data into your new or existing project.