Casselberry, in Florida, United States, is home to roughly 27,100 people in the Eastern Time Zone at 28.7°N latitude.
In 2025, Casselberry recorded an average annual temperature of 72°F — about 1.6°F below the 30-year normal of 73°F. The hottest day reached 101°F in July; the coldest was 35°F in December. Total precipitation was 53 inches (wetter than usual). The wettest month was June.
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