Portland International Jetport Rainfall Forecast

  • No Rain
  • 80%
  • 85%
  • 90%
  • 70%
  • 5%
  • 10%
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  • Rainfall Probability Forecast NOAA

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Portland International Jetport Rainfall Statistics

September Rainfall

Portland, Portland International Jetport (0 miles)

  • Total Rainfall September

    1.6in

  • Daily Average September

    0.1in

  • Wettest Day 17 September, 2026

    0.7in

  • Wet Days September

    10/25 (40%)

Climate (2021–2025)

Portland, Portland International Jetport (0 miles)

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  • Annual Average 2021–2025

    46.1in

  • Monthly Average 2021–2026

    3.9in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 14 October, 2022

    2.8in
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