Sun Valley Lake in Iowa has a temperate climate with four distinct seasons. Winters in the area tend to be cold and snowy, with temperatures often dipping down to freezing. Summers are warm and humid, with temperatures rising up to the mid-80s. The spring months bring pleasant temperatures as well as occasional thunderstorms, while autumn brings cool, crisp air and beautiful foliage. Overall, Sun Valley Lake experiences a mild climate throughout the year that is relatively free from extreme weather patterns.
Sun Valley Lake, Iowa gets 36 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Sun Valley Lake averages 24 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 203 sunny days per year in Sun Valley Lake. The US average is 205 sunny days.
Sun Valley Lake gets some kind of precipitation, on average, 85 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 13
Rain: averages 36 inches of rain a year
Snow: averages 24 inches of snow a year