Hamilton, IA has a humid continental climate with hot summers and cold winters. Average summer temperatures are usually in the mid-80s while winter temperatures hover around the mid-20s. The spring months tend to bring some rain and stronger storms while fall brings moderate weather with cool evenings. The city gets an average of 40 inches of rainfall per year, which helps keep humidity levels low during the summer months. Snow is common in Hamilton during the winter season, with an average of 16 inches each year.
Hamilton, Iowa gets 37 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Hamilton averages 28 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 202 sunny days per year in Hamilton. The US average is 205 sunny days.
Hamilton gets some kind of precipitation, on average, 95 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 12
Rain: averages 37 inches of rain a year
Snow: averages 28 inches of snow a year