Indiana Dunes National Park weather in January
January in Indiana Dunes National Park: freezing, a little rain, with clean air — a fair time to visit.
#12 of 12 months in Indiana Dunes National Park · #426 of 604 destinations to visit in January · comfort 57/100 (tier D)
Updated June 2026 · climate normals from ERA5 reanalysis
Indiana Dunes National Park climate normals — January
| Daytime high | 1°C / 34°F | 🥶 freezing |
|---|---|---|
| Nighttime low | -3°C / 26°F | |
| Feels like (high) | -3°C / 27°F | |
| Rainfall | 72 mm / 2.8 in | 🌦 some rain |
| Rainy days | 11 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | -5°C / 23°F | |
| Sunshine | 4.7 h/day | |
| Daylight | 9.6 h | |
| Wind | 21 km/h / 13 mph | |
| Snowfall | 23.8 cm / 9.4 in | |
| Air quality (US AQI) | 35 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
Where is Indiana Dunes National Park?
Loading map…
Indiana Dunes National Park in January — FAQ
- Is January a good time to visit Indiana Dunes National Park?
- January in Indiana Dunes National Park: freezing, a little rain, with clean air — a fair time to visit. It ranks #12 of 12 months for Indiana Dunes National Park on SeasonMap's comfort score (57/100).
- What is the weather like in Indiana Dunes National Park in January?
- In January, Indiana Dunes National Park averages a daily high of 1.1°C and a low of -3.3°C, with about 72 mm of rain over roughly 10.6 rainy days.
- What is the air quality in Indiana Dunes National Park in January?
- Indiana Dunes National Park has a mean US Air Quality Index of about 35 in January.
- Does it snow in Indiana Dunes National Park in January?
- Indiana Dunes National Park sees roughly 23.8 cm of snowfall in January.