How Crowded Is George Rogers Clark in July?
July is a very busy month at George Rogers Clark National Historical Park, running about 2.3× the park's average month — roughly 19% of the year's visitors come in July. That puts it between the May peak and the January low. Overall our best-time score rates July as "Fair" for a visit. Typical July weather averages a high near 89°F and a low around 66°F, with about 4.6" of precipitation. You'll get about 14.5 hours of daylight to explore.
Frequently Asked Questions
July is very busy at George Rogers Clark National Historical Park (about 2.3× the average month). Our best-time score rates it "Fair". The single best month overall is October.
The busiest month is May and the quietest is January. July sits at about 2.3× the park's average, or 19% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.