About Dorchester, MD's Climate & Weather History

Dorchester is a city of approximately 1,600 people in Maryland, United States. Located in the Eastern Time Zone at 39.3°N latitude.

In 2025, Dorchester recorded an average annual temperature of 55°F — about 1.1°F below the 30-year normal of 56°F. The hottest day reached 101°F in June; the coldest was 6°F in January. Total precipitation was 50 inches (wetter than usual). Snowfall totaled 6 inches, below the 19-inch average. The wettest month was May.