In December, Waco typically sees daytime highs of 16.0°C and overnight lows around 3.1°C. Compared to the annual average high of 25.5°C, December runs -9.5°C.
December in Waco averages a daytime high of 16.0°C and an overnight low of 3.1°C.
December runs -9.5°C compared to Waco's annual average high of 25.5°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 16.0°C and cooler evenings around 3.1°C.