Columbia River - Chinook Landing Rainfall Forecast

  • 35%
  • 95%
  • 95%
  • 15%
  • 30%
  • 50%
  • 60%
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  • Rainfall Probability Forecast NOAA

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Columbia River - Chinook Landing Rainfall Statistics

October Rainfall

Portland, Portland-Troutdale Airport (1.2 miles)

  • Total Rainfall October

    1.3in

  • Daily Average October

    0.1in

  • Wettest Day 12 October, 2025

    0.4in

  • Wet Days October

    5/17 (29%)

Climate (2010–Present)

Portland, Portland-Troutdale Airport (1.2 miles)

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  • Annual Average 2020–2024

    38.9in

  • Monthly Average 2020–2025

    3.2in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 10 June, 2022

    2.1in
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