Marshalltown, IA (50158) has a humid continental climate, with warm summers and cold winters. Average temperatures in the summer range from around 70 degrees Fahrenheit in June to around 85 degrees in August. Winters are usually cold and snowy, with average temperatures ranging from 20 to 30 degrees Fahrenheit. Precipitation is fairly common throughout the year, with an average of around 3 inches per month.
Marshalltown (zip 50158), Iowa gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Marshalltown (zip 50158) averages 26 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 194 sunny days per year in Marshalltown (zip 50158). The US average is 205 sunny days.
Marshalltown (zip 50158) gets some kind of precipitation, on average, 93 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 84 degrees
Winter Low: the January low is 10
Rain: averages 36 inches of rain a year
Snow: averages 26 inches of snow a year