Climate almanac
Boston
Massachusetts, US · 42.36°, -71.06°
What is the climate like in Boston?
Boston is warmest in July, when daily highs average 81°F (27°C), and coolest in January, when lows fall to about 27°F (-3°C). The wettest month is typically December and the driest is August; the year sees roughly 46 in of precipitation.
- Warmest monthJuly — average high 81°F (27°C)
- Coolest monthJanuary — average low 27°F (-3°C)
- Wettest monthDecember (4.8 in)
- Driest monthAugust (2.9 in)
- Annual precipitation46 in