About Kennett Square, PA's Climate & Weather History

Kennett Square is a city of approximately 6,200 people in Pennsylvania, United States. Located in the Eastern Time Zone at 39.8°N latitude.

In 2025, Kennett Square recorded an average annual temperature of 54°F — about 1.3°F below the 30-year normal of 56°F. The hottest day reached 97°F in June; the coldest was 5°F in January. Total precipitation was 40 inches (drier than usual). Snowfall totaled 5 inches, below the 20-inch average. The wettest month was May.