In March, Sioux City typically sees daytime highs of 7.3°C and overnight lows around -4.8°C. Compared to the annual average high of 15.8°C, March runs -8.4°C.
March in Sioux City averages a daytime high of 7.3°C and an overnight low of -4.8°C.
March runs -8.4°C compared to Sioux City's annual average high of 15.8°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 7.3°C and cooler evenings around -4.8°C.