Columbia River - Trojan Nuclear Plant Rainfall Forecast

  • 5%
  • 40%
  • No Rain
  • No Rain
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Columbia River - Trojan Nuclear Plant Rainfall Statistics

September Rainfall

Southwest Washington Regional Airport (5 miles)

  • Total Rainfall September

    1.1in

  • Daily Average September

    0.04in

  • Wettest Day 24 September, 2026

    0.6in

  • Wet Days September

    5/28 (18%)

Climate (2021–2025)

Southwest Washington Regional Airport (5 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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