Seasons Spring, Summer, and Fall The park is busiest March through October. Temperatures in spring and fall are comfortable. In summer, daytime temperatures often exceed 100°F (37°C). Rangers offer programs spring through fall. The visitor center is open daily. Winter Winter is a peaceful time, without the crowds and scorching heat of summer. Temperatures are cold, with highs averaging 30° to 50° F (-1° to 10° C). We do not offer ranger programs in winter. The visitor center is open daily throughout the winter, except for December 25. |
Last updated: July 24, 2021