- September 21 - the fall season begins in Denali. Visitors may drive up to 30 miles into the park until snow accumulates on the road.
- TBD - Denali Park Road closes at Mile 3 and the winter season begins when snow accrues. This is usually around early October, though it can be several weeks sooner or later, depending on conditions.
- Early April - The spring season. We begin plowing the Denali Park Road again, and the park road is open for visitors to drive beyond Mile 3 (weather permitting; spring snowstorms can close the road temporarily).
- May 20 - The summer season begins. Bus service is available on part of the park road.