North Sioux City, SD Climate

North Sioux City, SD has a typical midwestern climate with hot and humid summers and cold, dry winters. Summers typically bring temperatures in the high 80s and low 90s Fahrenheit during the day, while winter temperatures can dip into negative digits overnight. Precipitation is fairly consistent year-round with snowfall usually occurring between December and April. The area receives an average of 28 inches of snow annually, making it an ideal destination for winter sports fans.

North Sioux City, South Dakota gets 30 inches of rain, on average, per year. The US average is 38 inches of rain per year.

North Sioux City averages 32 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 212 sunny days per year in North Sioux City. The US average is 205 sunny days.

North 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 85 degrees
Winter Low: the January low is 10
Rain: averages 30 inches of rain a year
Snow: averages 32 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for North Sioux City is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

8.9 Summer - 4.6 Winter

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

Climate	North Sioux City, South Dakota	United States
	29.5 in.	38.1 in.
	32.3 in.	27.8 in.
	83.7 days	106.2 days
	212 days	205 days
	85.4°	85.8°
	9.7°	21.7°
	7	7
	3.5	4.3
	1102 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 North Sioux City with an average high temperature of 85.4°, which ranks it as about average compared to other places in South Dakota. In North Sioux City, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for North Sioux City are September, June and May.

In North Sioux City, there are 20.0 days annually when the high temperature is over 90°, which is about average compared to other places in South Dakota.

January has the coldest nighttime temperatures for North Sioux City with an average of 9.7°. This is warmer than most places in South Dakota.

In North Sioux City, there are 154.2 days annually when the nighttime low temperature falls below freezing, which is one of the warmest places in South Dakota.

In North Sioux City, there are 19.0 days annually when the nighttime low temperature falls below zero°, which is warmer than most places in South Dakota.

The humidity is usually comfortable in North 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 North 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 29.5 inches in North Sioux City means that it is one of the wettest places in South Dakota.

May is the rainiest month in North Sioux City with 10.3 days of rain, and February is the driest month with only 4.1 rainy days. There are 83.7 rainy days annually in North Sioux City, which is rainier than most places in South Dakota. 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 North Sioux City means that it is one of the least snowy places in South Dakota. December is the snowiest month in North Sioux City with 7.3 inches of snow, and 6 months of the year have significant snowfall.