Pack or skip
Thermal underwear for Pittsburgh in February
Verdict
Pack it
Lows around 21°F — thermals are the difference between a walk and a march.
Why
Pittsburgh in February averages highs of 37°F, lows of 21°F, 13 rainy days.
That climate means thermal underwear earns its space in the bag. Lows around 21°F — thermals are the difference between a walk and a march.