June 31-July 1 - Des Moinesflooding: flooding caused the sewer system to become overwhelmed, causing flash flooding in many neighbourhoods, also leading to the death of sports radio personality, Larry Cotlar.
July 19–20 - 32 confirmed tornadoes touched down east and southeast of Des Moines causing damage to Pella, Marshalltown, and the surrounding areas.
August 21 - The body of missing person Mollie Tibbetts was found in a cornfield in Poweshiek County, murdered by Cristhian Bahena Rivera.
