About Clewiston, FL's Climate & Weather History

Clewiston, in Florida, United States, is home to roughly 7,500 people in the Eastern Time Zone at 26.8°N latitude.

In 2025, Clewiston recorded an average annual temperature of 74°F. The hottest temperatures reached 95°F in August; the coolest were 43°F in December. Total precipitation for the year was 45 inches, with the wettest month being September.