Wind Cave National Park Rainfall Forecast

  • 85%
  • 95%
  • 60%
  • 95%
  • 70%
  • 25%
  • 30%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Wind Cave National Park Rainfall Statistics

September Rainfall

Custer, Custer County Airport (12.4 miles)

  • Total Rainfall September

    0.5in
  • Daily Average September

    0.03in
  • Wettest Day 14 September, 2026

    0.3in
  • Wet Days September

    4/17 (24%)

Climate (2021–2025)

Custer, Custer County Airport (12.4 miles)

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  • Annual Average 2021–2025

    18.1in
  • Monthly Average 2021–2026

    1.5in
  • Daily Average 2021–2026

    0.05in
  • Wettest Day 12 October, 2023

    2in
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