Wind Cave National Park Rainfall Forecast
- 85%
- 95%
- 60%
- 95%
- 70%
- 25%
- 30%
Wind Cave National Park Rainfall Statistics
September Rainfall
Custer, Custer County Airport (12.4 miles)
Total Rainfall September
0.5inDaily Average September
0.03inWettest Day 14 September, 2026
0.3inWet Days September
4/17 (24%)
Climate (2021–2025)
Custer, Custer County Airport (12.4 miles)
Annual Average 2021–2025
18.1inMonthly Average 2021–2026
1.5inDaily Average 2021–2026
0.05inWettest Day 12 October, 2023
2in