Storm Lake, IA has a humid continental climate with large seasonal temperature differences. The warmest months are usually June, July and August, when temperatures can reach the mid-80s Fahrenheit. The coldest months are typically December, January and February when temperatures can drop to below freezing. Storm Lake receives an average of 32 inches of snow each year. Precipitation occurs all year round and is highest in May and June. Storm Lake usually experiences mild spring and autumn seasons that are characterized by moderate temperatures and steady winds.
Storm Lake, Iowa gets 33 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Storm Lake averages 35 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 209 sunny days per year in Storm Lake. The US average is 205 sunny days.
Storm Lake gets some kind of precipitation, on average, 92 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 33 inches of rain a year
Snow: averages 35 inches of snow a year