How Crowded Is Johnstown Flood in April?
April is an average month at Johnstown Flood National Memorial, running about 1.0× the park's average month — roughly 8% 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 58°F and a low around 38°F, with about 3.5" of precipitation. You'll get about 13.1 hours of daylight to explore.
Frequently Asked Questions
April is average at Johnstown Flood National Memorial (about 1.0× the average month). Our best-time score rates it "Fair". The single best month overall is June.
The busiest month is July and the quietest is January. April sits at about 1.0× the park's average, or 8% of annual visitation.
Source: National Park Service Visitor Use Statistics (1979–2025), NOAA NCEI Climate Normals 1991–2020. Updated 2026-06-20.