Wyoming
National parks in Wyoming
Wyoming has 2 national parks 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 |
|---|---|---|---|---|
| Yellowstone National Park | Jul, Aug and Sep | Jul | 72° / 1° | 4,670,000 |
| Grand Teton National Park | Jun, Aug and Sep | Jul | 77° / 1° | 3,615,000 |
| John D. Rockefeller, Jr., Memorial Parkway | May, Jun and Sep | Jul | 77° / 1° | 1,447,000 |
| Devils Tower National Monument | Sep | Jul | 85° / 8° | 522,000 |
| Bighorn Canyon National Recreation Area | Apr, May and Oct | Jul | 87° / 7° | 222,000 |
Wyoming parks by month
| Month | Visitors, all 5 sites | Sites with mild weather |
|---|---|---|
| January | 105,000 | none |
| February | 110,000 | none |
| March | 108,000 | none |
| April | 175,000 | none |
| May | 1,009,000 | John D. Rockefeller, Jr., Memorial Parkway |
| June | 1,972,000 | Grand Teton, John D. Rockefeller, Jr., Memorial Parkway |
| July | 2,249,000 | Yellowstone, Grand Teton, John D. Rockefeller, Jr., Memorial Parkway |
| August | 2,044,000 | Yellowstone, Grand Teton, John D. Rockefeller, Jr., Memorial Parkway |
| September | 1,793,000 | Yellowstone, Grand Teton, John D. Rockefeller, Jr., Memorial Parkway, Devils Tower National Monument |
| October | 726,000 | none |
| November | 90,000 | none |
| December | 94,000 | 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.