Boston Weather in January
2.4°C high · -7.4°C low · 101 mm rain · 2.6h sun
Jan is a cool month in Boston — not peak season, but a good time to avoid crowds.
January at a glance
| Metric | Value |
|---|---|
| Average high | 2.4°C |
| Average low | -7.4°C |
| Rainfall | 101 mm |
| Sunshine | 2.6 hours/day |
| Daylight | 9.2 hours |
What to pack in January
Pack a warm coat and layers, plus a raincoat and umbrella for Boston in January.
Boston weather by month
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Frequently asked questions
What is the weather in Boston in January?
Highs of 2.4°C and lows of -7.4°C, with about 101 mm of rain and 2.6 hours of sunshine per day.
Is January a good time to visit Boston?
Jan is a cool month in Boston — not peak season, but a good time to avoid crowds.
What to do in Boston · Best time to visit Boston
Climate data: Open-Meteo Historical (ERA5), 1991–2020. CC BY 4.0.