Boston experiences a humid continental climate with four distinct seasons, each demanding its own wardrobe strategy.
Rain falls fairly evenly throughout the year, though summer thunderstorms and nor'easters mean waterproof layers earn their keep in every season.
Temperatures swing dramatically from winter lows around -5°C to summer highs near 28°C, with occasional heat waves pushing past 35°C and cold snaps diving well below freezing.
Coastal winds off the Atlantic can make temperatures feel considerably colder than the thermometer suggests, particularly during winter and shoulder seasons.
The city's brick sidewalks and cobblestone streets turn treacherous when wet or icy, making proper footwear with good traction non-negotiable most of the year.