Pack or skip
Winter coat for Aurora in December
Verdict
Pack it
Average lows dip to 18°F — a real winter coat, not a jacket.
Why
Aurora in December averages highs of 44°F, lows of 18°F, 6 rainy days.
That climate means a winter coat earns its space in the bag. Average lows dip to 18°F — a real winter coat, not a jacket.