Is May a rare birth month? Common
No. May is the 6th most common of the twelve in the United States, with about 10,702 births per day.

May in numbers
One of the twenty rarest birthdays of the year is in May, and none of the twenty most common.
May 24 is the most common day, May 27 the rarest
May 24#105 of 366 ยท 11,108 births a yearMost common and rarest May birthdays
The five most common May birthdays
The five rarest May birthdays
Why May ranks #6
May is the middle of the year: the 6th most common of the twelve, a hair below an average day.
- No fixed holiday. Memorial Day moves, so it never pins one date the way the Fourth of July does. Nothing in May empties a delivery ward.
- The two ends. Mayย 24 is the most common May birthday, #105 of 366; Mayย 27 is the rarest, #347, a date that often lands on the Memorial Day weekend.
- Where it sits. About 10,702 births per day, against 11,448 in September and 10,394 in January.
May in 27 countries
May is #6 of the twelve in the United States. Across the other 26 countries it runs from #1 in Ecuador to #12 in Chile. It is the most common birth month in Ecuador.
RarestMost common
May against the other eleven
May averages about 10,702 births per day, the 6th most common of the twelve. By total births it climbs to #5, helped by its 31 days.
May is #6 of the twelve by births per day
About 10,702 a day in the United States; September, the most common, has 11,448.
Quick answers
Is May a rare birth month?
No. In US birth records May is the 6th most common of the twelve, with about 10,702 births per day. Mayย 24 is the most common May birthday; Mayย 27 is the rarest.
How many babies are born in May?
About 331,759 a year in the United States, #5 of the twelve by total births. Per day that is about 10,702, the 6th most common of the twelve.
What is the most common May birthday?
Mayย 24, #105 of 366 in the United States, with about 11,108 births a year (+2.4% against an average day). The rarest May date is Mayย 27, #347.
What is the most common birth month?
September, with about 11,448 US births per day. The rarest month per day is January. February has the fewest births in total because it is the shortest month, not because its days are the rarest.