In January, Grand Junction typically sees daytime highs of 3.3°C and overnight lows around -8.5°C. Compared to the annual average high of 18.9°C, January runs -15.6°C.
January in Grand Junction averages a daytime high of 3.3°C and an overnight low of -8.5°C.
January runs -15.6°C compared to Grand Junction's annual average high of 18.9°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 3.3°C and cooler evenings around -8.5°C.