How Crowded Is Fort Union Trading Post in July?
July is a very busy month at Fort Union Trading Post National Historic Site, running about 2.2× the park's average month — roughly 18% of the year's visitors come in July. That puts it between the June peak and the January low. Overall our best-time score rates July as "Good" for a visit. Typical July weather averages a high near 85°F and a low around 57°F, with about 2.5" of precipitation. You'll get about 15.5 hours of daylight to explore.
Frequently Asked Questions
July is very busy at Fort Union Trading Post National Historic Site (about 2.2× the average month). Our best-time score rates it "Good". The single best month overall is August.
The busiest month is June and the quietest is January. July sits at about 2.2× the park's average, or 18% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.