The highest day temperature in March 2025 was 82°F. The lowest night temperature was 19°F. The average values for day and night temperatures during March were 49.8°F и 32.7°F respectivly.

You can expect various weather conditions during March. Be ready for sunny, cloudy or even gloomy days.

Precipitation total in March for Sioux City is 0.7 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 6.1 hours.