Surprise Valley, SD is a beautiful area with a temperate climate. The summers are typically mild with average temperatures around 75 degrees Fahrenheit and low humidity. Winters are cold but still mild, with temperatures rarely dipping below freezing. The area gets an adequate amount of rainfall throughout the year, mostly in spring and fall. Snowfall is moderate in the winter months, usually enough to enjoy some outdoor winter activities without too much disruption. Overall, Surprise Valley has a pleasant climate that attracts visitors from all over the region.
Surprise Valley, South Dakota gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Surprise Valley averages 41 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 Surprise Valley. The US average is 205 sunny days.
Surprise Valley gets some kind of precipitation, on average, 80 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 89 degrees
Winter Low: the January low is 12
Rain: averages 20 inches of rain a year
Snow: averages 41 inches of snow a year