San Juan Island - Mosquito Bay Rainfall Forecast

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  • 55%
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San Juan Island - Mosquito Bay Rainfall Statistics

January Rainfall

Friday Harbor Airport (7.5 miles)

  • Total Rainfall January

    2.7in

  • Daily Average January

    0.2in

  • Wettest Day 12 January, 2026

    0.8in

  • Wet Days January

    12/19 (63%)

Climate (2010–Present)

Friday Harbor Airport (7.5 miles)

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  • Annual Average 2021–2025

    20.6in

  • Monthly Average 2021–2025

    1.7in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 15 November, 2021

    1.9in
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