Knappa Slough - Knappa Rainfall Forecast

  • 35%
  • 30%
  • 5%
  • 80%
  • 65%
  • 25%
  • 55%
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Knappa Slough - Knappa Rainfall Statistics

November Rainfall

Astoria, Astoria Regional Airport (13.7 miles)

  • Total Rainfall November

    5.7in

  • Daily Average November

    0.2in

  • Wettest Day 1 November, 2025

    1.1in

  • Wet Days November

    14/28 (50%)

Climate (2010–Present)

Astoria, Astoria Regional Airport (13.7 miles)

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  • Annual Average 2020–2024

    68.7in

  • Monthly Average 2020–2025

    5.6in

  • Daily Average 2020–2025

    0.2in

  • Wettest Day 6 January, 2022

    5.1in
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