Pack or skip
Sunscreen for Fresno in December
Verdict
Pack it
Sun still finds you at 54°F — UV doesn't care about temperature.
Why
Fresno in December averages highs of 54°F, lows of 38°F, 5 rainy days.
That climate means sunscreen earns its space in the bag. Sun still finds you at 54°F — UV doesn't care about temperature.