About Clinton, IA's Climate & Weather History

With a population of around 26,100, Clinton sits in Iowa, United States. The city operates in the Central Time Zone.

In 2025, Clinton recorded an average annual temperature of 51°F — about 1.2°F above the 30-year normal of 50°F. The hottest day reached 93°F in June; the coldest was -12°F in January. Total precipitation was 31 inches (drier than usual). The wettest month was July.