Yankton, SD County enjoys a humid continental climate, which is characterized by warm humid summers and cold winters. The average summer temperature is around 73°F with high temperatures reaching the mid-90s. Winters in Yankton can be quite cold, with average temperatures dipping as low as 12°F. Precipitation is fairly typical throughout the year, with an average of 35 inches annually. Snowfall can range anywhere from 10 to 20 inches between November and March. Overall, Yankton experiences four distinct seasons and mild weather conditions that make it an ideal location for outdoor activities all year round.
Yankton County, South Dakota gets 27 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Yankton County 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 Yankton County. The US average is 205 sunny days.
Yankton County gets some kind of precipitation, on average, 84 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 86 degrees
Winter Low: the January low is 9
Rain: averages 27 inches of rain a year
Snow: averages 34 inches of snow a year