In December, Edison typically sees daytime highs of 5.3°C and overnight lows around -3.9°C. Compared to the annual average high of 16.8°C, December runs -11.5°C.
December in Edison averages a daytime high of 5.3°C and an overnight low of -3.9°C.
December runs -11.5°C compared to Edison's annual average high of 16.8°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 5.3°C and cooler evenings around -3.9°C.