A month must begin on a Sunday in order to have a Friday the 13th.
the day has to be a sunday
In order for a month to have it's thirteenth (13th) day land on a Friday the month most start on a SUNDAY.
Friday always falls on a Friday, including Friday the 13th.
March 13th 1959 was a Friday.
November 13th 1959 was a Friday.
November 13th 1970 was a Friday.
November 13th 1970 was a Friday.
13th November 1953 was a Friday.
June 13th 1969 was a Friday.
Friday
Friday
Friday