About Rapid City, SD's Climate & Weather History

Rapid City is a city of approximately 73,600 people in South Dakota, United States. Located in the Mountain Time Zone at 44.1°N latitude.

In 2025, Rapid City recorded an average annual temperature of 50°F — about 2.8°F above the 30-year normal of 47°F. The hottest day reached 102°F in June; the coldest was -18°F in February. Total precipitation was 18 inches (near normal). Snowfall totaled 7 inches, below the 49-inch average. The wettest month was June.