February 3 – Iowa caucuses: Pete Buttigieg wins the caucuses with 26.6% of state delegates and becomes the first openly gay person to ever earn the most delegates in a state's presidential contest
March 8 – First COVID-19 cases in Iowa after a group of 3 people returned to the United States after a cruise in Egypt
March 24 – First confirmed COVID-19 death in Iowa
May 4 – Body of missing person Abdullahi "Abdi" Sharif found in the Des Moines River
August 10 – Iowa derecho: Winds reached up to 140mph causing damages to buildings, power outages and closures across the state. The 2020 derecho was one of the most expensive thunderstorms in United States history.
