In December, Fishers typically sees daytime highs of 3.8°C and overnight lows around -5.0°C. Compared to the annual average high of 16.5°C, December runs -12.7°C.
December in Fishers averages a daytime high of 3.8°C and an overnight low of -5.0°C.
December runs -12.7°C compared to Fishers's annual average high of 16.5°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 3.8°C and cooler evenings around -5.0°C.