Decorah, IA has a humid continental climate with warm summers and cold winters. Average summer temperatures range from the upper 70s to mid-80s while winter temperatures range from the upper teens to low 30s. The area experiences four distinct seasons, including snowfall in the wintertime and some occasional precipitation during the other seasons. The city typically receives around 32 inches of rain per year.
Decorah, Iowa gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Decorah averages 40 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 192 sunny days per year in Decorah. The US average is 205 sunny days.
Decorah gets some kind of precipitation, on average, 106 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 8
Rain: averages 36 inches of rain a year
Snow: averages 40 inches of snow a year