Oregon
National parks in Oregon
Oregon has 1 national park and 3 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 |
|---|---|---|---|---|
| Crater Lake National Park | Jun, Aug and Sep | Jul | 69° / 20° | 566,000 |
| Lewis and Clark National Historical Park | Apr, May and Sep | Jul | 65° / 36° | 265,000 |
| John Day Fossil Beds National Monument | Mar and Oct | Jun | 91° / 29° | 141,000 |
| Oregon Caves National Monument and Preserve | May and Oct | Jul | 94° / 33° | 63,000 |
Oregon parks by month
| Month | Visitors, all 4 sites | Sites with mild weather |
|---|---|---|
| January | 18,000 | none |
| February | 18,000 | none |
| March | 36,000 | John Day Fossil Beds National Monument |
| April | 50,000 | Lewis and Clark National Historical Park |
| May | 83,000 | Lewis and Clark National Historical Park, Oregon Caves National Monument and Preserve |
| June | 133,000 | Crater Lake, Lewis and Clark National Historical Park |
| July | 238,000 | Crater Lake, Lewis and Clark National Historical Park |
| August | 207,000 | Crater Lake, Lewis and Clark National Historical Park |
| September | 135,000 | Crater Lake, Lewis and Clark National Historical Park |
| October | 69,000 | John Day Fossil Beds National Monument, Oregon Caves National Monument and Preserve |
| November | 28,000 | none |
| December | 22,000 | none |
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.