Knappa Slough - Blind Slough Entrance Rainfall Forecast

  • 95%
  • 95%
  • 65%
  • 75%
  • 60%
  • 60%
  • 30%
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  • Rainfall Probability Forecast NOAA

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Knappa Slough - Blind Slough Entrance Rainfall Statistics

December Rainfall

Astoria, Astoria Regional Airport (14.3 miles)

  • Total Rainfall December

    3.4in

  • Daily Average December

    0.2in

  • Wettest Day 18 December, 2025

    1.3in

  • Wet Days December

    5/21 (24%)

Climate (2010–Present)

Astoria, Astoria Regional Airport (14.3 miles)

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  • Annual Average 2020–2024

    68.7in

  • Monthly Average 2020–2025

    5.5in

  • Daily Average 2020–2025

    0.2in

  • Wettest Day 6 January, 2022

    5.1in
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