About Charleston, MO's Climate & Weather History

Charleston is a city of approximately 5,800 people in Missouri, United States. Located in the Central Time Zone at 36.9°N latitude.

In 2025, Charleston recorded an average annual temperature of 60°F — about 1.4°F above the 30-year normal of 58°F. The hottest day reached 95°F in July; the coldest was 4°F in February. Total precipitation was 52 inches (near normal). The wettest month was April.