South Sioux City, NE enjoys a moderate climate with four distinct seasons. Summers can be hot and humid, with temperatures reaching up to 90 degrees Fahrenheit during the day and cooling off in the evenings. Winters are cold but mild compared to other parts of Nebraska, with temperatures usually staying above freezing for most of the season. Spring brings plenty of rain and thunderstorms while autumn is usually sunny and dry. The city is also prone to tornadoes during the warmer months due to its location in Tornado Alley.
South Sioux City, Nebraska gets 29 inches of rain, on average, per year. The US average is 38 inches of rain per year.
South Sioux City averages 32 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 209 sunny days per year in South Sioux City. The US average is 205 sunny days.
South Sioux City gets some kind of precipitation, on average, 84 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.
Weather Highlights
Summer High: the July high is around 86 degrees
Winter Low: the January low is 10
Rain: averages 29 inches of rain a year
Snow: averages 32 inches of snow a year