Oelwein, IA is located at the junction of the Cedar and Winneshiek rivers in northeast Iowa. The city has a humid continental climate characterized by cold winters with freezing temperatures and hot summers with moderate humidity levels. Winter average temperatures range from 22 to 26 °F (-6 to -3 °C) while summer temperatures range from 68 to 78 °F (20 to 26 °C). Annual precipitation totals around 28 inches (711 mm), mostly falling in the form of snow during the winter months. Oelwein experiences seasonal temperature variations, although they are not overly extreme due to its location in close proximity to both the Mississippi and Missouri rivers.
Oelwein, Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Oelwein averages 35 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 Oelwein. The US average is 205 sunny days.
Oelwein gets some kind of precipitation, on average, 108 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 82 degrees
Winter Low: the January low is 7
Rain: averages 37 inches of rain a year
Snow: averages 35 inches of snow a year