In December, Clarksville typically sees daytime highs of 9.3°C and overnight lows around -1.1°C. Compared to the annual average high of 20.5°C, December runs -11.3°C.
December in Clarksville averages a daytime high of 9.3°C and an overnight low of -1.1°C.
December runs -11.3°C compared to Clarksville's annual average high of 20.5°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 9.3°C and cooler evenings around -1.1°C.