Spearfish, SD has a typical midwestern climate with all four seasons. Summers are hot and humid, while winters are cold and snowy. The city receives an average of 50 inches of rainfall per year, and temperatures range from an average low of -7°F in the winter to an average high of 78°F in the summer. Spring and fall bring mild temperatures with occasional precipitation. Spearfish is known for its wide variety of outdoor activities due to the temperate climate making it a popular destination for visitors throughout the year.
Spearfish, South Dakota gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Spearfish averages 56 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 227 sunny days per year in Spearfish. The US average is 205 sunny days.
Spearfish gets some kind of precipitation, on average, 90 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 88 degrees
Winter Low: the January low is 17
Rain: averages 21 inches of rain a year
Snow: averages 56 inches of snow a year