In October, Ann Arbor typically sees daytime highs of 16.6°C and overnight lows around 4.5°C. Compared to the annual average high of 14.4°C, October runs +2.2°C.
October in Ann Arbor averages a daytime high of 16.6°C and an overnight low of 4.5°C.
October runs +2.2°C compared to Ann Arbor's annual average high of 14.4°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 16.6°C and cooler evenings around 4.5°C.