What to Wear in Boston in Winter: Month-by-Month Outfit Guide
Boston in winter sits in the 20 to 35°F range. This is the layer-by-layer outfit guide for Boston's winter weather — what to wear, what to pack for a visit, and the local context that shapes the recommendations.
WHAT TO EXPECT
20 to 35°F is the typical range for Boston in winter (December, January, February). December through March. 20-35°F highs, often colder with wind chill. Significant snow and ice. Wool overcoat or insulated parka, merino base layers, leather boots treated for salt, scarf, gloves, beanie. The temperature range is the headline; what you actually feel depends on humidity, wind, and what indoor spaces you'll cycle through.
THE FOUNDATION LAYER
Start with a midweight merino or technical synthetic base layer — long-sleeve, fitted close enough to wick. Cotton is a mistake at this temperature in Boston.
THE MID LAYER
A wool sweater or insulated vest carries you between the base and the outerwear. In Boston's winter, this layer comes off the moment you're indoors.
THE OUTERWEAR
A serious winter coat — wool overcoat, parka, or technical down jacket. Wind matters as much as temperature in Boston, so look for a hood and a high collar.
ACCESSORIES
Wool hat, insulated gloves, heavy scarf, wool socks, weather-rated boots. These are not optional in Boston winter.
WHAT TO PACK FOR A TRIP TO BOSTON IN WINTER
Three layer permutations covering the 20 to 35°F range, plus accessories. If your trip spans the season's edge (early March or late November), pack toward the cooler end of the range — overestimating warmth is easier to recover from than underestimating.
LOCAL CONTEXT
Boston winter wind off the harbor is biting. The T (subway) is heated; the platforms often are not. Dress for both. Quality boots that handle salt are non-negotiable.