In December, Brockton typically sees daytime highs of 4.0°C and overnight lows around -5.5°C. Compared to the annual average high of 15.2°C, December runs -11.2°C.
December in Brockton averages a daytime high of 4.0°C and an overnight low of -5.5°C.
December runs -11.2°C compared to Brockton's annual average high of 15.2°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 4.0°C and cooler evenings around -5.5°C.