Illinois River State Park Rainfall Forecast

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  • Rainfall Probability Forecast NOAA

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Illinois River State Park Rainfall Statistics

January Rainfall

Brookings, Brookings Airport (32.3 miles)

  • Total Rainfall January

    0.1in

  • Daily Average January

    0in

  • Wettest Day 14 January, 2026

    0.1in

  • Wet Days January

    1/18 (6%)

Climate (2010–Present)

Brookings, Brookings Airport (32.3 miles)

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  • Annual Average 2021–2025

    30.8in

  • Monthly Average 2021–2025

    2.6in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 13 June, 2021

    2.6in
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