Pack or skip
Thermal underwear for Pittsburgh in March
Verdict
Pack it
Lows around 29°F — thermals are the difference between a walk and a march.
Why
Pittsburgh in March averages highs of 47°F, lows of 29°F, 16 rainy days.
That climate means thermal underwear earns its space in the bag. Lows around 29°F — thermals are the difference between a walk and a march.