June 28
- 1865 - A multiple-vortex tornado devastated Viroqua, Wisconsin, killing at least 13 people in town and another 9 at a nearby school. As many as 12 of the injured may have died later.
- 1924 – An F4 tornado devastated parts of Sandusky and Lorain, Ohio, killing at least 85 people. Another 39 people reported missing may have been lost in Lake Erie. Because a large portion on the path was on the lake, it is unknown if this was a single tornado, or a tornado family.