Mermaid, in Pennsylvania, United States, is home to roughly 4,900 people in the Eastern Time Zone at 40.1°N latitude.
In 2025, Mermaid recorded an average annual temperature of 55°F — about 1.3°F below the 30-year normal of 56°F. The hottest day reached 102°F in June; the coldest was 6°F in January. Total precipitation was 39 inches (drier than usual). The wettest month was May.
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