Indiana Dunes National Park weather in March
March in Indiana Dunes National Park: cold, rainy, with clean air — a great time to visit.
#9 of 12 months in Indiana Dunes National Park · #394 of 604 destinations to visit in March · comfort 70/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Indiana Dunes National Park climate normals — March
| Daytime high | 6°C / 43°F | 🧥 cold |
|---|---|---|
| Nighttime low | 1°C / 33°F | |
| Feels like (high) | 2°C / 36°F | |
| Rainfall | 111 mm / 4.4 in | 🌧 rainy |
| Rainy days | 13 days | |
| Humidity | 75% | 💧 humid |
| Dew point | -2°C / 29°F | |
| Sunshine | 7.5 h/day | |
| Daylight | 12 h | |
| Wind | 23 km/h / 14 mph | |
| Snowfall | 10 cm / 3.9 in | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Indiana Dunes National Park?
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Indiana Dunes National Park in March — FAQ
- Is March a good time to visit Indiana Dunes National Park?
- March in Indiana Dunes National Park: cold, rainy, with clean air — a great time to visit. It ranks #9 of 12 months for Indiana Dunes National Park on SeasonMap's comfort score (70/100).
- What is the weather like in Indiana Dunes National Park in March?
- In March, Indiana Dunes National Park averages a daily high of 6.1°C and a low of 0.7°C, with about 110.7 mm of rain over roughly 13.2 rainy days.
- What is the air quality in Indiana Dunes National Park in March?
- Indiana Dunes National Park has a mean US Air Quality Index of about 43 in March.
- Does it snow in Indiana Dunes National Park in March?
- Indiana Dunes National Park sees roughly 10 cm of snowfall in March.