In December, Irondequoit typically sees daytime highs of 2.0°C and overnight lows around -5.4°C. Compared to the annual average high of 13.8°C, December runs -11.7°C.
December in Irondequoit averages a daytime high of 2.0°C and an overnight low of -5.4°C.
December runs -11.7°C compared to Irondequoit's annual average high of 13.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 2.0°C and cooler evenings around -5.4°C.