In December, Eugene typically sees daytime highs of 8.5°C and overnight lows around 2.2°C. Compared to the annual average high of 17.7°C, December runs -9.2°C.
December in Eugene averages a daytime high of 8.5°C and an overnight low of 2.2°C.
December runs -9.2°C compared to Eugene's annual average high of 17.7°C, ranking #11 of 12 months by warmth.
Plan for daytime highs near 8.5°C and cooler evenings around 2.2°C.