The highest day temperature in March 2026 was 93°F. The lowest night temperature was 3°F. The average values for day and night temperatures during March were 53.4°F и 33.7°F respectivly.

Most of the days in March are sunny but you can also expect cloudy and gloomy days.

Precipitation total in March for Sioux City is 0.6 in.

The average wind speed in March is 11.5 mph. It makes March one of the most windy months of the year for Sioux City.

We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sioux City in March is 6.5 hours.