In March, Iowa City typically sees daytime highs of 7.5°C and overnight lows around -3.5°C. Compared to the annual average high of 15.4°C, March runs -8.0°C.
March in Iowa City averages a daytime high of 7.5°C and an overnight low of -3.5°C.
March runs -8.0°C compared to Iowa City's annual average high of 15.4°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 7.5°C and cooler evenings around -3.5°C.