Three is the maximum and they have to fall in February, March and November as they do in 2009 (in leap years the max is still three, but the months are January, April, and July as in 1984 and 2012) .
A normal year will have only one or two.
The most is three.
The least is one.
Depending on the year, the number of Friday the 13ths range from 1 to 3. The number of days in a year can be 365 or 366 if it is a leap year. Take the number of Friday the 13ths and divide by the number of days in the year. For example, the probability for 2009 is 3/365 to be born on Friday the 13th.
2012 is a leap year starting on a Sunday. The Friday 13ths in this year occur in January, April and July. So there will be 3 of them.
There will be one Friday the 13th in 2010 - in August.
EIn 2012 there are 3 Friday 13ths, all exactly 13 weeks apart. STRANGE FACT :O
About 38%
The maximum is three.
There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.There were two Friday the 13ths in 1996, in September and December.
February, March, and November had a Friday the 13th in 1407, if date calculators can be trusted back that far.
Depending on the year, the number of Friday the 13ths range from 1 to 3. The number of days in a year can be 365 or 366 if it is a leap year. Take the number of Friday the 13ths and divide by the number of days in the year. For example, the probability for 2009 is 3/365 to be born on Friday the 13th.
2012 is a leap year starting on a Sunday. The Friday 13ths in this year occur in January, April and July. So there will be 3 of them.
There will be one Friday the 13th in 2010 - in August.
on average, 17.2
January, April and July
Just one, in August.
There in only one Friday that 13th in 2011. It's in May.
There is one in September and one in December.
The last time there were three Friday the 13ths in one year was in 2015. The next time this will happen is in 2026.