Pack or skip
Packable down jacket for Boston in January
Verdict
Pack it
Lows around 22°F — the packable puffer covers 90% of layering needs.
Why
Boston in January averages highs of 37°F, lows of 22°F, 11 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 22°F — the packable puffer covers 90% of layering needs.