How Crowded Is Fort Union National Monument in August?

August runs about 1.2× Fort Union National Monument's average month, which makes it a busy month here — roughly 10% of the park's yearly visitors come in August.

In a typical August the park sees roughly 1,100 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

That makes August the 4th-busiest of the park's twelve months, sitting between the June peak (1.7×) and the January low (0.3×).

On our Best Time to Visit score August rates 65/100 ("Good") — the single best-rated month at Fort Union, balancing crowds against weather and daylight.

Typical August weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 85°F and an overnight low around 51°F, with about 2.8" of precipitation.

That average of about 68°F is a comfortable range for hiking and being outdoors all day.

August falls inside the park's busiest stretch: June, July and August together pull about 37% of the year's visitors, so a visit this month means sharing the park with the peak-season crowd.

You'll have about 13.4 hours of daylight in August to explore — between the 9.6-hour midwinter low and the 14.4-hour summer high.

Park-wide, 2024 drew 9,217 recreation visits, down 3.7% from 9,570 in 2023.

Across the past decade overall visitation has eased about 12.5%, so August may feel a touch quieter than it once did.