Interior town, SD has a moderate climate with cold winters and warm summers. The weather is generally dry, with an average of only 15 inches of total precipitation a year. Winters are typically cold, with temperatures rarely falling below 0掳F, while summers are warm and sunny, often reaching into the mid-80s. Spring and autumn months tend to be mild and comfortable. Despite the low precipitation levels, snow can still accumulate in the winter months as Interior town is located in the northern part of South Dakota's Black Hills region.
Interior, South Dakota gets 18 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Interior averages 33 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 228 sunny days per year in Interior. The US average is 205 sunny days.
Interior 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 90 degrees
Winter Low: the January low is 13
Rain: averages 18 inches of rain a year
Snow: averages 33 inches of snow a year