March 31 1973 was a Saturday.
October 31, 1973 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.
Friday
Tuesday
January 31, 1947 fell on a Friday.
January 31, 1989 fell on a Tuesday.
January 31, 1945 fell on a Wednesday.
January 31, 1998 fell on a Saturday.