In December, Madison typically sees daytime highs of -0.8°C and overnight lows around -9.3°C. Compared to the annual average high of 13.2°C, December runs -14.0°C.
December in Madison averages a daytime high of -0.8°C and an overnight low of -9.3°C.
December runs -14.0°C compared to Madison's annual average high of 13.2°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near -0.8°C and cooler evenings around -9.3°C.