57555 Mission, SD has a continental climate, meaning that there are large seasonal temperature differences. Summers in the area tend to be warm and humid with average temperatures around 70°F, while winters are cold and dry with average temperatures around 20°F. There is plenty of snowfall throughout the winter months, making it an ideal destination for snow sports enthusiasts. The area also receives an average of 28 inches of rain annually, providing ample water for the local flora and fauna.
Mission (zip 57555), South Dakota gets 21 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Mission (zip 57555) averages 40 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 Mission (zip 57555). The US average is 205 sunny days.
Mission (zip 57555) gets some kind of precipitation, on average, 83 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 11
Rain: averages 21 inches of rain a year
Snow: averages 40 inches of snow a year