Grand Lake Saint Marys State Park Rainfall Forecast

  • 10%
  • 35%
  • 5%
  • 75%
  • 35%
  • 10%
  • 45%
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  • Rainfall Probability Forecast NOAA

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Grand Lake Saint Marys State Park Rainfall Statistics

December Rainfall

Versailles Darke County Airport (22.4 miles)

  • Total Rainfall December

    0.7in

  • Daily Average December

    0.04in

  • Wettest Day 18 December, 2025

    0.5in

  • Wet Days December

    4/22 (18%)

Climate (2010–Present)

Versailles Darke County Airport (22.4 miles)

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  • Annual Average 2020–2024

    20.2in

  • Monthly Average 2020–2025

    1.8in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 3 March, 2023

    2.9in
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