About West Mount Airy, PA's Climate & Weather History

With a population of around 12,600, West Mount Airy sits in Pennsylvania, United States. The city operates in the Eastern Time Zone.

In 2025, West Mount Airy 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.