Pack or skip
Beanie for Sacramento in December
Verdict
Pack it
Lows around 39°F — a beanie doubles the perceived warmth for zero grams.
Why
Sacramento in December averages highs of 53°F, lows of 39°F, 8 rainy days.
That climate means a beanie earns its space in the bag. Lows around 39°F — a beanie doubles the perceived warmth for zero grams.