March 31, 1949 was a Thursday.
Wednesday
It was a Saturday.
31 January 1965 was a Sunday.
January 31, 1957, was a Thursday.
31 January 1936 was a Friday.
December 31 1949 was a Saturday.
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.
January 31, 1997 fell on a Friday.