In December, Harrisonburg typically sees daytime highs of 7.7°C and overnight lows around -3.6°C. Compared to the annual average high of 18.4°C, December runs -10.7°C.
December in Harrisonburg averages a daytime high of 7.7°C and an overnight low of -3.6°C.
December runs -10.7°C compared to Harrisonburg's annual average high of 18.4°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 7.7°C and cooler evenings around -3.6°C.