Indiana Dunes National Park visitation by month and year
July is the busiest month at Indiana Dunes, when the average temperature nearby is 73 degrees. January is the quietest, and the average temperature then is 25 degrees. July runs about 6.7 times the visits of January. The crowd arrives with the warm weather and leaves with it. Annual visits rose 23.2 percent from 2,134,285 in 2019 to 2,629,497 in 2025.
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Visits by month, with temperature and precipitation
Annual visits, 1979 to 2025
The last ten years
| Year | Recreation visits | Change on prior year |
|---|---|---|
| 2025 | 2,629,497 | -2.8% |
| 2024 | 2,705,209 | -2.2% |
| 2023 | 2,765,892 | -2.4% |
| 2022 | 2,834,180 | -10.8% |
| 2021 | 3,177,210 | +38.6% |
| 2020 | 2,293,106 | +7.4% |
| 2019 | 2,134,285 | +21.5% |
| 2018 | 1,756,079 | -18.6% |
| 2017 | 2,158,471 | +27.1% |
| 2016 | 1,698,223 | +3.5% |
Visitation at other parks
Source: NPS Visitor Use Statistics, monthly recreation visits, as compiled for Publicopia Labs. A year is shown only when all twelve months were reported. Temperature, precipitation and snowfall normals are the 1991 to 2020 monthly averages published by NOAA NCEI for station USC00124244, 680 feet above sea level. Data refreshed October 14, 2026.