Fort Thompson, SD has a temperate climate with warm summers and cool winters. The average high temperatures during the summer months range from the mid-80s to low-90s while in the winter months, temperatures typically range from the mid-20s to mid-30s. The area gets an average of 16 inches of precipitation a year, mostly in the form of rain but some snow does occur in the winter months. Winters are usually mild here with only occasional days of extreme cold or snowfall. Overall, Fort Thompson has a pleasant climate all year round.
Fort Thompson, South Dakota gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Fort Thompson averages 37 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 Fort Thompson. The US average is 205 sunny days.
Fort Thompson gets some kind of precipitation, on average, 71 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 87 degrees
Winter Low: the January low is 6
Rain: averages 21 inches of rain a year
Snow: averages 37 inches of snow a year