Alton, IA has a typical Midwestern climate, with hot summers and cold winters. Temperatures range from an average high of 86 degrees Fahrenheit in the summer months to an average low of 18 degrees Fahrenheit in the winter months. Precipitation is abundant throughout the year, with snowfall occurring primarily between October and April. The city's location near Lake Manawa also contributes to significant humidity levels during the warmer months of the year. Overall, Alton, IA offers a moderate climate that makes it an ideal destination for all sorts of outdoor activities.
Alton, Iowa gets 29 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Alton averages 31 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 212 sunny days per year in Alton. The US average is 205 sunny days.
Alton gets some kind of precipitation, on average, 86 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 84 degrees
Winter Low: the January low is 7
Rain: averages 29 inches of rain a year
Snow: averages 31 inches of snow a year