Pack or skip
Packable down jacket for Washington DC in January
Verdict
Pack it
Lows around 28°F — the packable puffer covers 90% of layering needs.
Why
Washington DC in January averages highs of 43°F, lows of 28°F, 9 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 28°F — the packable puffer covers 90% of layering needs.