How Crowded Is Andrew Johnson in May?
May is a busy month at Andrew Johnson National Historic Site, running about 1.5× the park's average month — roughly 13% of the year's visitors come in May. It is in fact the busiest month of the year here, so expect full parking lots, busy trails and booked-out campgrounds. If crowds bother you, January (the quietest month) or the recommended September are easier. Typical May weather averages a high near 78°F and a low around 52°F, with about 4.3" of precipitation. You'll get about 13.9 hours of daylight to explore.
Frequently Asked Questions
May is busy at Andrew Johnson National Historic Site (about 1.5× the average month). Our best-time score rates it "Fair". The single best month overall is September.
The busiest month is May and the quietest is January. May sits at about 1.5× the park's average, or 13% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.