Pennsylvania
National parks in Pennsylvania
Pennsylvania has no national park, but 12 other busy National Park System sites in this guide. The best months below balance mild weather and crowds.
| Park | Best months | Busiest | July high / January low °F | Visitors a year |
|---|---|---|---|---|
| Delaware Water Gap National Recreation Area | Apr and May | Jul | 84° / 19° | 4,091,000 |
| Independence National Historical Park | Apr, Oct and Nov | Jul | 89° / 28° | 2,589,000 |
| Valley Forge National Historical Park | Apr, May and Nov | Jul | 88° / 23° | 1,855,000 |
| Gettysburg National Military Park | Apr and Nov | May | 86° / 21° | 738,000 |
| Upper Delaware Scenic and Recreational River | May | Jul | 81° / 14° | 362,000 |
| Flight 93 National Memorial | Oct | Jul | 84° / 19° | 338,000 |
| Fort Necessity National Battlefield | Aug and Oct | Jul | 79° / 15° | 250,000 |
| Allegheny Portage Railroad National Historic Site | Apr | Jul | 81° / 19° | 185,000 |
| First State National Historical Park | Apr, May and Oct | Oct | 84° / 24° | 184,000 |
| Johnstown Flood National Memorial | Oct | May | 79° / 19° | 110,000 |
| Eisenhower National Historic Site | Apr and Nov | Sep | 86° / 21° | 99,000 |
| Steamtown National Historic Site | Apr and May | Aug | 85° / 20° | 60,000 |
Pennsylvania parks by month
Weather 1991–2020 NOAA normals at each park's nearest station. Visitors National Park Service recreation visits, 2023–2025 average. Mild means an average high of 55–80°F without above-normal rain.