Visitation · National Monument

Effigy Mounds National Monument visitation by month and year

July is the busiest month at Effigy Mounds, when the average temperature nearby is 73 degrees. December is the quietest, and the average temperature then is 25 degrees. July runs about 5.9 times the visits of December. The crowd arrives with the warm weather and leaves with it. Annual visits fell 13.2 percent, from 65,581 in 2019 to 56,912 in 2025.

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Visits by month, with temperature and precipitation

Bars are the average recreation visits in each month over 2021 to 2025. The line is the average temperature at Prairie Du Chien, 4 miles from the park's reference point at 658 feet, station USC00476827 in the NOAA 1991 to 2020 climate normals. The lower panel is monthly rain and snow from the same station, also 1991 to 2020 averages.

Annual visits, 1979 to 2025

Recreation visits per calendar year. A year with a missing month is left blank rather than estimated.

The last ten years

Year	Recreation visits	Change on prior year
2025	56,912	-8.2%
2024	61,975	+0.3%
2023	61,795	+9.5%
2022	56,422	-15.5%
2021	66,734	+266.2%
2020	18,225	-72.2%
2019	65,581	+18.0%
2018	55,576	-17.1%
2017	67,006	-13.2%
2016	77,195	-5.7%

Visitation at other parks

Herbert Hoover National Historic Site Castle Clinton National Monument Statue Of Liberty National Monument Cabrillo National Monument

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 USC00476827, 658 feet above sea level. Data refreshed October 14, 2026.