About Lancaster, PA's Climate & Weather History

With a population of around 59,300, Lancaster sits in Pennsylvania, United States. The city operates in the Eastern Time Zone.

In 2025, Lancaster recorded an average annual temperature of 54°F — about 0.9°F above the 30-year normal of 53°F. The hottest day reached 99°F in June; the coldest was -1°F in January. Total precipitation was 39 inches (drier than usual). The wettest month was May.