South Sioux City, NE Climate

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

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for South Sioux City is 7.0 (10=best), which means it is less comfortable than most places in Nebraska.

8.9 Summer - 4.6 Winter

June, September and August are the most pleasant months in South Sioux City, while January and December are the least comfortable months.

Climate	South Sioux City, Nebraska	United States
	29.4 in.	38.1 in.
	32.3 in.	27.8 in.
	83.9 days	106.2 days
	209 days	205 days
	85.6°	85.8°
	9.7°	21.7°
	7	7
	3.6	4.3
	1106 ft.	2443 ft.

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for South Sioux City with an average high temperature of 85.6°, which ranks it as one of the coolest places in Nebraska. In South Sioux City, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for South Sioux City are September, June and May.

In South Sioux City, there are 20.0 days annually when the high temperature is over 90°, which is one of the coolest places in Nebraska.

January has the coldest nighttime temperatures for South Sioux City with an average of 9.7°. This is one of the coldest places in Nebraska.

In South Sioux City, there are 155.4 days annually when the nighttime low temperature falls below freezing, which is about average compared to other places in Nebraska.

In South Sioux City, there are 18.7 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in Nebraska.

The humidity is usually comfortable in South Sioux City but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

June is the wettest month in South Sioux City with 4.1 inches of rain, and the driest month is February with 0.7 inches. The wettest season is Autumn with 37% of yearly precipitation and 9% occurs in Spring, which is the driest season. The annual rainfall of 29.4 inches in South Sioux City means that it is wetter than most places in Nebraska.

May is the rainiest month in South Sioux City with 10.3 days of rain, and February is the driest month with only 4.1 rainy days. There are 83.9 rainy days annually in South Sioux City, which is rainier than most places in Nebraska. The rainiest season is Summer when it rains 31% of the time and the driest is Spring with only a 16% chance of a rainy day.

An annual snowfall of 32.3 inches in South Sioux City means that it is snowier than most places in Nebraska. December is the snowiest month in South Sioux City with 7.3 inches of snow, and 6 months of the year have significant snowfall.