Shell Rock, IA is located in the Midwestern United States and has a humid continental climate. The summers are hot and humid while the winters are cold with occasional snowfall. The average temperature in Shell Rock is around 35 degrees Fahrenheit in the winter and 78 degrees Fahrenheit in the summer. Precipitation is common throughout the year with an annual average of around 36 inches.
Shell Rock (zip 50670), Iowa gets 35 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Shell Rock (zip 50670) averages 34 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 191 sunny days per year in Shell Rock (zip 50670). The US average is 205 sunny days.
Shell Rock (zip 50670) gets some kind of precipitation, on average, 98 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 35 inches of rain a year
Snow: averages 34 inches of snow a year