In December, Spokane typically sees daytime highs of 1.8°C and overnight lows around -3.4°C. Compared to the annual average high of 14.4°C, December runs -12.6°C.
December in Spokane averages a daytime high of 1.8°C and an overnight low of -3.4°C.
December runs -12.6°C compared to Spokane's annual average high of 14.4°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 1.8°C and cooler evenings around -3.4°C.