Boston, Massachusetts Weather in January

United States · January climate averages and travel tips

Avg high1°C (34°F)
Avg low-7°C (19°F)
Rainfall95 mm (3.7 in)
RatingPoor 2.1/10

Boston in January sees daytime temperatures around 1°C (34°F), dropping to about -7°C (19°F) at night. January is winter in United States. The month is moderately rainy, with about 95 mm (3.7 in) of rain spread over 10 days. You get roughly 9.2 hours of daylight and frequently cloudy skies.

Is January a good time to visit Boston?

January is not the best time to visit Boston (2.1/10) mainly because of the cold. The weather is much better in September.

January weather at a glance

Average high1°C (34°F)
Average low-7°C (19°F)
Daily mean-3°C (27°F)
Rainfall95 mm (3.7 in)
Rainy days (1 mm+)10
Humidity88%
Cloud cover63%
Daylight9.2 hours
Est. sunshine3.7 hours/day
Wind3.7 km/h
vs December3°C cooler than December, with 26 mm less rain.

What to pack for Boston in January

Boston weather in other months

Jan1°C / -7°C95 mmPoorFeb2°C / -7°C88 mmPoorMar6°C / -3°C108 mmPoorApr13°C / 3°C107 mmFairMay19°C / 9°C93 mmExcellentJun24°C / 14°C109 mmGoodJul28°C / 18°C113 mmGoodAug27°C / 17°C95 mmGoodSep24°C / 13°C97 mmExcellentOct17°C / 8°C126 mmGoodNov10°C / 1°C97 mmFairDec4°C / -3°C121 mmPoor

← DecemberBest time to visit BostonFebruary →

Better weather in January nearby

Nearby in January

Where else is good in January? See where to go in January.