Pack or skip
Beanie for Louisville in December
Verdict
Pack it
Lows around 31°F — a beanie doubles the perceived warmth for zero grams.
Why
Louisville in December averages highs of 46°F, lows of 31°F, 11 rainy days.
That climate means a beanie earns its space in the bag. Lows around 31°F — a beanie doubles the perceived warmth for zero grams.