Rousseau Recreation and Overlook Area Rainfall Forecast

  • 25%
  • 90%
  • No Rain
  • 45%
  • 15%
  • 55%
  • 35%
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Rousseau Recreation and Overlook Area Rainfall Statistics

September Rainfall

Pierre, Pierre Regional Airport (11.2 miles)

  • Total Rainfall September

    1.1in

  • Daily Average September

    0.1in

  • Wettest Day 6 September, 2026

    1in

  • Wet Days September

    3/13 (23%)

Climate (2021–2025)

Pierre, Pierre Regional Airport (11.2 miles)

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  • Annual Average 2021–2025

    19.1in

  • Monthly Average 2021–2026

    1.7in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 26 August, 2022

    2.8in
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