Pack or skip
Sunscreen for Michigan City in February
Verdict
Pack it
Sun still finds you at 36°F — UV doesn't care about temperature.
Why
Michigan City in February averages highs of 36°F, lows of 23°F, 8 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 36°F — UV doesn't care about temperature.