Sylvan Lake Rainfall Forecast

  • 45%
  • 30%
  • 25%
  • 40%
  • 15%
  • 10%
  • 15%
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  • Rainfall Probability Forecast NOAA

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Sylvan Lake Rainfall Statistics

December Rainfall

Custer, Custer County Airport (8.1 miles)

  • Total Rainfall December

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  • Daily Average December

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  • Wettest Day 3 December, 2025

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  • Wet Days December

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Climate (2010–Present)

Custer, Custer County Airport (8.1 miles)

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  • Annual Average 2020–2024

    17.9in

  • Monthly Average 2020–2025

    1.5in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 12 October, 2023

    2in
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