Pack or skip
Beanie for Washington DC in January
Verdict
Pack it
Lows around 28°F — a beanie doubles the perceived warmth for zero grams.
Why
Washington DC in January averages highs of 43°F, lows of 28°F, 6 rainy days.
That climate means a beanie earns its space in the bag. Lows around 28°F — a beanie doubles the perceived warmth for zero grams.