In December, Heidenheim an der Brenz typically sees daytime highs of 1.9°C and overnight lows around -3.1°C. Compared to the annual average high of 11.8°C, December runs -9.9°C.
December in Heidenheim an der Brenz averages a daytime high of 1.9°C and an overnight low of -3.1°C.
December runs -9.9°C compared to Heidenheim an der Brenz's annual average high of 11.8°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 1.9°C and cooler evenings around -3.1°C.