Climate almanac
East Boston
Massachusetts, United States · 42.38°, -71.04°
What is the climate like in East Boston?
The best time to visit East Boston is typically August – September, with trip comfort peaking in August (6.9/10). East Boston is warmest in July, when daily highs average 80°F (26°C), and coolest in January, when lows fall to about 26°F (-3°C). The wettest month is typically December and the driest is August; the year sees roughly 46 in (1167 mm) of precipitation.
- Best time to visitAugust – September — comfort peaks in August (6.9/10)
- Warmest monthJuly — average high 80°F (26°C)
- Coolest monthJanuary — average low 26°F (-3°C)
- Wettest monthDecember (4.9 in (126 mm))
- Driest monthAugust (2.9 in (74 mm))
- Annual precipitation46 in (1167 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromBoston, 3 km away (1936-2026)