February in Dorchester averages a daily high of 4.6°C with nights around -5.5°C. Expect roughly 9.7 wet days totalling 92mm. A hard month to visit for comfort alone.
Across the year, the best time to visit Dorchester is May–June.
Based on JAMAICA PLAIN, MA US (4.1km), 1995–2024. 25 years of February data.