1902: Light to heavy frost occurred over most of South Dakota with low temperatures ranging from the mid-20s to the lower 30s.
1987: A tornado destroyed 57 mobile homes at the Chateau Estates trailer park northwest of Detroit, Michigan killing one person and injuring six others. Total damage was estimated at 1.7 million dollars. Thunderstorms over Lower Michigan also drenched the Saginaw Valley with up to 4.5 inches of rain in less than six hours.
Source: Chicago Tribune.
1988: The first full day of summer was a hot one, with afternoon highs of 100 degrees or above reported from the Northern and Central Plains to the Ohio Valley. Sixty-nine cities in the north central U.S. reported record high temperatures for the date. The high of 110 degrees at Sioux Falls, SD was an all-time record for that location.