In March, Dubuque typically sees daytime highs of 5.5°C and overnight lows around -4.5°C. Compared to the annual average high of 13.9°C, March runs -8.3°C.
March in Dubuque averages a daytime high of 5.5°C and an overnight low of -4.5°C.
March runs -8.3°C compared to Dubuque's annual average high of 13.9°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 5.5°C and cooler evenings around -4.5°C.