In January, Gary typically sees daytime highs of -0.7°C and overnight lows around -8.9°C. Compared to the annual average high of 14.8°C, January runs -15.4°C.
January in Gary averages a daytime high of -0.7°C and an overnight low of -8.9°C.
January runs -15.4°C compared to Gary's annual average high of 14.8°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near -0.7°C and cooler evenings around -8.9°C.