Union County, SD Climate

Union, SD County enjoys a mild climate, with average temperatures ranging from the high 50s in the winter to the low 80s in the summer months. The area experiences plenty of sunshine throughout the year and low levels of precipitation. During the summer months, Union can get quite humid, and thunderstorms are not uncommon during these months. During wintertime, snowfall is light and temperatures rarely drop below freezing. All in all, Union enjoys a temperate climate that makes it an ideal place to live for both visitors and locals alike.

Union County, South Dakota gets 29 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Union County averages 32 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 208 sunny days per year in Union County. The US average is 205 sunny days.

Union County 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 9
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 Union County is 7.0 (10=best), which means it is one of the most pleasant places in South Dakota.

9 Summer - 4.6 Winter

June, September and August are the most pleasant months in Union County, while January and December are the least comfortable months.

Climate	Union, South Dakota	United States
	28.7 in.	38.1 in.
	31.5 in.	27.8 in.
	83.6 days	106.2 days
	208 days	205 days
	85.0°	85.8°
	8.5°	21.7°
	7	7
	3.5	4.3
	1247 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 Union County with an average high temperature of 85.0°, which ranks it as about average compared to other places in South Dakota. In Union County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Union County are September, June and August.

In Union County, there are 18.2 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 Union County with an average of 8.5°. This is warmer than most places in South Dakota.

In Union County, there are 157.0 days annually when the nighttime low temperature falls below freezing, which is warmer than most places in South Dakota.

In Union County, there are 21.5 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 Union County 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 Union County with 4.2 inches of rain, and the driest month is February with 0.6 inches. The wettest season is Autumn with 38% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 28.7 inches in Union County means that it is one of the wettest places in South Dakota.

May is the rainiest month in Union County with 10.6 days of rain, and February is the driest month with only 4.0 rainy days. There are 83.6 rainy days annually in Union County, 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 31.5 inches in Union County means that it is one of the least snowy places in South Dakota. December is the snowiest month in Union County with 7.2 inches of snow, and 7 months of the year have significant snowfall.

Reviews for Union

See all ()

Write a Review

Start Your Review of Union

Jobs