Swan, IA has a humid continental climate, with hot summers and cold winters. During the summer months, temperatures typically reach highs in the 80s and 90s on average, with occasional heat waves. Winters are usually cold and snowy, with average low temperatures dipping below freezing and plenty of snowfall. Spring and fall are milder seasons, but still experience a wide range of temperatures throughout the year. Rainfall in Swan is also fairly common all year round, with some areas receiving more than 20 inches annually.
Swan (zip 50252), Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Swan (zip 50252) averages 30 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 Swan (zip 50252). The US average is 205 sunny days.
Swan (zip 50252) gets some kind of precipitation, on average, 99 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 85 degrees
Winter Low: the January low is 12
Rain: averages 37 inches of rain a year
Snow: averages 30 inches of snow a year