Temperatures range from -26C to 37C.
Fall months of September, October, and November are fairly cool.
Winter (December, January, and February) is a very cold time.
Spring (March, April, and May) brings warmer temperatures
Summer (June, July, and August) is the hottest period.
Because of this variety of weather conditions, be prepared to dress for rain, snow, or sunshine. Clothing adequate to protect against severe weather may be purchased at reasonable cost after your arrival.
Visit The Weather Channel for more information on Iowa climate.