How Crowded Is Thomas Edison National Historical Park in August?

August runs about 1.6× Thomas Edison National Historical Park's average month, which makes it a busy month here — roughly 13% of the park's yearly visitors come in August.

In a typical August the park sees roughly 6,400 recreation visits, based on National Park Service monthly counts from 1979 to 2025.

It is the single busiest month of the year at Thomas Edison; January, the quietest, runs only about 0.6× the average — a 3-to-1 swing between high and low season.

On our Best Time to Visit score August rates 43/100 ("Poor"), versus the top-rated September at 75/100 — pleasant weather with noticeably thinner crowds (shoulder season).

Typical August weather, from 1991–2020 NOAA climate normals at the nearest station, averages a daytime high near 84°F and an overnight low around 63°F, with about 4.5" of precipitation.

That average of about 73°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 13.6 hours of daylight in August to explore — between the 9.1-hour midwinter low and the 14.9-hour summer high.

Park-wide, 2021 drew 14,807 recreation visits, down 64.9% from 42,224 in 2019.

Across the past decade overall visitation has eased about 15.6%, so August may feel a touch quieter than it once did.