Wind Cave National Park weather in May
May in Wind Cave National Park: nice, rainy, with clean air — one of the best months to visit.
#1 of 12 months in Wind Cave National Park · #123 of 604 destinations to visit in May · comfort 89/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Wind Cave National Park climate normals — May
| Daytime high | 19°C / 65°F | 😎 nice |
|---|---|---|
| Nighttime low | 6°C / 43°F | |
| Feels like (high) | 16°C / 61°F | |
| Rainfall | 98 mm / 3.9 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 61% | 💧 humid |
| Dew point | 5°C / 41°F | |
| Sunshine | 10.9 h/day | |
| Daylight | 14.7 h | |
| Wind | 20 km/h / 12 mph | |
| Snowfall | 7.1 cm / 2.8 in | |
| Air quality (US AQI) | 48 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Wind Cave National Park?
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Wind Cave National Park in May — FAQ
- Is May a good time to visit Wind Cave National Park?
- May in Wind Cave National Park: nice, rainy, with clean air — one of the best months to visit. It ranks #1 of 12 months for Wind Cave National Park on SeasonMap's comfort score (89/100).
- What is the weather like in Wind Cave National Park in May?
- In May, Wind Cave National Park averages a daily high of 18.6°C and a low of 6.2°C, with about 97.9 mm of rain over roughly 12.6 rainy days.
- What is the air quality in Wind Cave National Park in May?
- Wind Cave National Park has a mean US Air Quality Index of about 48 in May.
- Does it snow in Wind Cave National Park in May?
- Wind Cave National Park sees roughly 7.1 cm of snowfall in May.