How often do we have Friday the 13th in a year?

How common are Friday the 13ths?

How common are Friday the 13ths?

Every year has at least one Friday the 13th. The largest possible number of Friday the 13ths in one year is three. Interestingly, a 13th is slightly more likely to fall on a Friday than any other day. This happens because the leap year rules make some patterns of weekdays happen more often than others. The winning patterns include many Friday the 13ths. - faqkids.com; wikipedia.org; howstuffworks.com