In January, Granby typically sees daytime highs of -5.1°C and overnight lows around -15.5°C. Compared to the annual average high of 10.7°C, January runs -15.8°C.
January in Granby averages a daytime high of -5.1°C and an overnight low of -15.5°C.
January runs -15.8°C compared to Granby's annual average high of 10.7°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near -5.1°C and cooler evenings around -15.5°C.