In December, Youngstown typically sees daytime highs of 3.5°C and overnight lows around -5.1°C. Compared to the annual average high of 15.6°C, December runs -12.2°C.
December in Youngstown averages a daytime high of 3.5°C and an overnight low of -5.1°C.
December runs -12.2°C compared to Youngstown's annual average high of 15.6°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 3.5°C and cooler evenings around -5.1°C.