Cowlitz River - Kelso Rainfall Forecast

  • No Rain
  • No Rain
  • 65%
  • 45%
  • 5%
  • 15%
  • 20%
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  • Rainfall Probability Forecast NOAA

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Cowlitz River - Kelso Rainfall Statistics

September Rainfall

Southwest Washington Regional Airport (1.9 miles)

  • Total Rainfall September

    0.3in

  • Daily Average September

    0.02in

  • Wettest Day 6 September, 2026

    0.2in

  • Wet Days September

    3/22 (14%)

Climate (2021–2025)

Southwest Washington Regional Airport (1.9 miles)

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  • Annual Average 2021–2025

    39.7in

  • Monthly Average 2021–2026

    3.2in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 4 November, 2022

    4.2in
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