Fort Madison, IA has a humid continental climate with hot summers and cold winters. The average temperature throughout the year is around 21°C (70°F). Precipitation is evenly distributed throughout the year, with an average of 68 cm (27 in) of rain and snowfall combined. In the summer months, temperatures reach highs of up to 33°C (91°F), while in winter the temperature drops to -12°C (10°F). The area experiences frequent storms from late spring to early autumn.
Fort Madison, Iowa gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.
Fort Madison averages 21 inches of snow per year. The US average is 28 inches of snow per year.
On average, there are 204 sunny days per year in Fort Madison. The US average is 205 sunny days.
Fort Madison gets some kind of precipitation, on average, 108 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 86 degrees
Winter Low: the January low is 17
Rain: averages 39 inches of rain a year
Snow: averages 21 inches of snow a year