How Crowded Is Frederick Law Olmsted in April?
April is an average month at Frederick Law Olmsted National Historic Site, running about 0.9× the park's average month — roughly 7% of the year's visitors come in April. That puts it between the July peak and the January low. Overall our best-time score rates April as "Fair" for a visit. Typical April weather averages a high near 59°F and a low around 38°F, with about 4.3" of precipitation. You'll get about 13.2 hours of daylight to explore.
Frequently Asked Questions
April is average at Frederick Law Olmsted National Historic Site (about 0.9× the average month). Our best-time score rates it "Fair". The single best month overall is May.
The busiest month is July and the quietest is January. April sits at about 0.9× the park's average, or 7% of annual visitation.
Source: National Park Service Visitor Use Statistics (1981–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.