In December, Barrie typically sees daytime highs of -1.5°C and overnight lows around -9.3°C. Compared to the annual average high of 11.3°C, December runs -12.8°C.
December in Barrie averages a daytime high of -1.5°C and an overnight low of -9.3°C.
December runs -12.8°C compared to Barrie's annual average high of 11.3°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near -1.5°C and cooler evenings around -9.3°C.