In October, Union typically sees daytime highs of 18.6°C and overnight lows around 6.2°C. Compared to the annual average high of 16.8°C, October runs +1.8°C.
October in Union averages a daytime high of 18.6°C and an overnight low of 6.2°C.
October runs +1.8°C compared to Union's annual average high of 16.8°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 18.6°C and cooler evenings around 6.2°C.