September 13 1984 was a Thursday.
September 13, 1951 fell on a Thursday.
September 13, 1969 fell on a Saturday.
September 13, 2003 fell on a Saturday.
September, 13th, 1964, was a Sunday.
September 13, 1956 fell on a Thursday.
Sunday. You can find a day of week calculator at this site. Just enter in the date and it will calculate it for you: http://www.searchforancestors.com/utility/dayofweek.html
July 13, 1956 was on a Friday.
November 13, 1956 was a Tuesday.
April 13, 1956 was a Friday.
December 13 1956 was a Thursday.
May 13, 1956 was a Sunday.
June 13, 1956 was a Wednesday.
February 13, 1956 fell on a Monday.
Monday
Saturday
Tuesday