Sangamon, SD has a humid continental climate, characterized by hot summers and cold winters. The average annual temperature is around 45 degrees Fahrenheit, with the hottest month being July at an average high of 81 degrees Fahrenheit and the coldest month being January at an average low of 9 degrees Fahrenheit. Precipitation is evenly distributed throughout the year with an average of 27 inches per year. Snowfall averages around 25 inches per year, with the peak occurring in December.
Sangamon, South Dakota gets 20 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sangamon averages 40 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Sangamon. The US average is 205 sunny days.
Sangamon gets some kind of precipitation, on average, 85 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 83 degrees
Winter Low: the January low is 4
Rain: averages 20 inches of rain a year
Snow: averages 40 inches of snow a year