January 31st, 1983 fell on a Monday.
May 31, 1983 was a Tuesday.
March 31, 1983 fell on a Thursday.
August 31, 1983 fell on a Wednesday.
31 January 1965 was a Sunday.
January 31, 1949, was a Monday.
January 31, 1957, was a Thursday.
31 January 1936 was a Friday.
A Sunday
It was a Monday.
January 31, 1947 fell on a Friday.
January 31, 1989 fell on a Tuesday.
January 31, 1956 fell on a Tuesday.