West Yarmouth, in Massachusetts, United States, is home to roughly 6,000 people in the Eastern Time Zone at 41.7°N latitude.
In 2025, West Yarmouth recorded an average annual temperature of 52°F — right at the 30-year normal of 52°F. The hottest day reached 97°F in June; the coldest was 15°F in February. Total precipitation was 44 inches (near normal). The wettest month was October.
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