May 13th (1980) was a Tuesday. It's the 133rd day of the year (134th in leap years) in the Gregorian calendar. There are 232 days left to the end of the year.
Historical Events for 13th May, 1980
» An Fujita Scale named F3 tornado Kalamazoo Tornado of 1980 known as hits Kalamazoo County, Michigan. President Jimmy Carter declares it a federal disaster area.