June 3
- 1860 - A long-track tornado traveled across eastern Iowa and western Illinois, killing 92 people. The greatest loss was in Camanche, Iowa, where at least 41 people died and every building was severely damaged or destroyed.
- 1980 – one of the costliest tornado events in U.S. history, a series of six tornadoes, forming a complex tornado family, moved across Grand Island, Nebraska, killing five people and causing $300 million in damage, equivalent to $1,109 million in 2023. Most of the deaths and damage wee from a single F4 tornado that followed a curving path along the south side of the city. This event was the inspiration for the 1996 movie Night of the Twisters.
- 2009 – An F3 tornado touched down in Russia in the town of Krasnozavodsk, killing one person and injuring 185.