February - because it's the shortest month!
13 is the smallest number of people that will guarantee that at least two of them were born on the same month.
Probably February because it has the least days.
Usually babies are least born in the month of "MAY".
At least twenty people are born around the Earth every day. so the least would be February.
February is the least common birth month, with the fewest number of people being born during this month. This can be attributed to its fewer days compared to other months and the impact of holidays like Valentine's Day.
June
As of 1989, at least one U.S. President has been born in every month of the year.
At least a month.
There has been at least one president born in every month. June and September have the fewest with one each.
I would say probably about April, May, March, December. I know which month has the least, probably August or February.
It can be any month that your family doesn't have many people born in it.
November