Des Moines, IA County has a humid continental climate with cold winters and hot, humid summers. The region experiences four distinct seasons, with average temperatures ranging from the low 20s in winter to the upper 80s in summer. Precipitation is fairly evenly distributed throughout the year, with rainfall occurring most frequently during the spring and summer months, and snowfall occurring mostly during the winter months. The area is generally sunny throughout the year, but heat waves can occur during summertime.
Des Moines County, Iowa gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Des Moines County averages 24 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 201 sunny days per year in Des Moines County. The US average is 205 sunny days.
Des Moines County gets some kind of precipitation, on average, 107 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 16
Rain: averages 39 inches of rain a year
Snow: averages 24 inches of snow a year