Climate almanac
Boston
New York, United States · 42.63°, -78.74°
What is the weather like in Boston in January?
In January, Boston is typically 33°F (0°C) during the day and 22°F (-6°C) at night. The month brings about 3.9 in (99 mm) of precipitation in total. Snowfall averages about 15 in (369 mm) over the month.
- Average high33°F (0°C)
- Average low22°F (-6°C)
- Precipitation3.9 in (99 mm)
- Clear or mostly clear days1
- Snowfall15 in (369 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)