In January, Modesto typically sees daytime highs of 12.0°C and overnight lows around 2.5°C. Compared to the annual average high of 23.6°C, January runs -11.6°C.
January in Modesto averages a daytime high of 12.0°C and an overnight low of 2.5°C.
January runs -11.6°C compared to Modesto's annual average high of 23.6°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 12.0°C and cooler evenings around 2.5°C.