Best Time to Visit Idaho National Parks
Idaho has 6 National Park Service units that report visitation. Below, each is ranked by annual visits, with the month our data recommends for the best balance of light crowds, comfortable weather and daylight. Crowds peak in summer almost everywhere — the recommended months show where the quieter shoulder seasons fall.
| Park | Annual visits | Best time | Busiest | Quietest |
|---|---|---|---|---|
| YellowstoneNational Park | 4,762,988 | April | Jul | Nov |
| Nez PerceNational Historical Park | 343,910 | July | Aug | Jan |
| Craters Of The MoonNational Monument & Preserve | 260,418 | August | Jul | Jan |
| City Of RocksNational Reserve | 90,898 | July | Jun | Feb |
| MinidokaNational Historic Site | 43,539 | September | Jul | Dec |
| Hagerman Fossil BedsNational Monument | 36,667 | September | Jul | Jan |