With a population of around 16,500, Fairhaven sits in Massachusetts, United States. The city operates in the Eastern Time Zone.
In 2025, Fairhaven recorded an average annual temperature of 52°F — about 1.2°F above the 30-year normal of 50°F. The hottest day reached 95°F in June; the coldest was 8°F in January. Total precipitation was 44 inches (near normal). The wettest month was May.
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