About Harvard, MA's Climate & Weather History

With a population of around 6,100, Harvard sits in Massachusetts, United States. The city operates in the Eastern Time Zone.

In 2025, Harvard recorded an average annual temperature of 50°F — about 0.8°F above the 30-year normal of 49°F. The hottest day reached 95°F in June; the coldest was -5°F in January. Total precipitation was 45 inches (near normal). The wettest month was May.