Mount Vernon, SD is located in the Great Plains region of South Dakota. The climate here is classified as a semi-arid continental climate, with generally mild winters and hot summers. Precipitation is sparse throughout the year, averaging only around 19 inches annually. Snowfall amounts vary greatly from year to year, but are usually around 30 inches annually. Winters are relatively mild here compared to other areas of the US due to the low elevation and location in the Great Plains. Summers can be quite hot with temperatures often reaching into the 90s.
Mount Vernon (zip 57363), South Dakota gets 24 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Mount Vernon (zip 57363) averages 34 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 211 sunny days per year in Mount Vernon (zip 57363). The US average is 205 sunny days.
Mount Vernon (zip 57363) gets some kind of precipitation, on average, 79 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 9
Rain: averages 24 inches of rain a year
Snow: averages 34 inches of snow a year