Roberts County, SD Climate

Roberts, SD County has a continental climate with cold winters and hot summers. The average temperature in the winter months ranges from 20 to 30 degrees Fahrenheit and the summer averages from 70 to 80 degrees Fahrenheit. Rainfall is common throughout the year with an average of 3 inches per month. Snowfall is also common in the winter months, with an average of 10 inches per month. Summers tend to be dry, however, with an average of 1 inch of precipitation per month. Despite this dryness, humidity levels remain relatively high due to its location on the Great Plains.

Roberts County, South Dakota gets 24 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Roberts County averages 44 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 200 sunny days per year in Roberts County. The US average is 205 sunny days.

Roberts County gets some kind of precipitation, on average, 81 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 83 degrees
Winter Low: the January low is 2
Rain: averages 24 inches of rain a year
Snow: averages 44 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for Roberts County is 6.6 (10=best), which means it is less comfortable than most places in South Dakota.

9.3 Summer - 4 Winter

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

Climate	Roberts, South Dakota	United States
	24.0 in.	38.1 in.
	43.8 in.	27.8 in.
	81.2 days	106.2 days
	200 days	205 days
	82.9°	85.8°
	2.2°	21.7°
	6.6	7
	3	4.3
	1321 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 Roberts County with an average high temperature of 82.9°, which ranks it as cooler than most places in South Dakota. In Roberts County, there are 4 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for Roberts County are June, August and July.

In Roberts County, there are 10.6 days annually when the high temperature is over 90°, which is cooler than most places in South Dakota.

January has the coldest nighttime temperatures for Roberts County with an average of 2.2°. This is one of the coldest places in South Dakota.

In Roberts County, there are 170.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in South Dakota.

In Roberts County, there are 36.4 days annually when the nighttime low temperature falls below zero°, which is one of the coldest places in South Dakota.

Humidity in Roberts County is generally low and comfortable. But there some days when the humidity becomes unpleasant, especially in July and August. The most humid months (but still comfortable) are July, August and June.

June is the wettest month in Roberts County with 3.7 inches of rain, and the driest month is January with 0.6 inches. The wettest season is Autumn with 41% of yearly precipitation and 8% occurs in Spring, which is the driest season. The annual rainfall of 24.0 inches in Roberts County means that it is about average compared to other places in South Dakota.

June is the rainiest month in Roberts County with 10.1 days of rain, and February is the driest month with only 4.5 rainy days. There are 81.2 rainy days annually in Roberts County, which is about average compared to other places in South Dakota. The rainiest season is Autumn when it rains 33% of the time and the driest is Spring with only a 17% chance of a rainy day.

An annual snowfall of 43.8 inches in Roberts County means that it is one of the snowiest places in South Dakota. January is the snowiest month in Roberts County with 8.6 inches of snow, and 7 months of the year have significant snowfall.

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