Pack or skip
Packable down jacket for Pittsburgh in January
Verdict
Pack it
Lows around 20°F — the packable puffer covers 90% of layering needs.
Why
Pittsburgh in January averages highs of 34°F, lows of 20°F, 16 rainy days.
That climate means a packable down jacket earns its space in the bag. Lows around 20°F — the packable puffer covers 90% of layering needs.