Is March a rare birth month? Ordinary
Not really. March is the 6th rarest of the twelve in the United States, with about 10,658 births per day.

March in numbers
None of the year's twenty most common or twenty rarest birthdays fall in March: a month without extremes.
March 1 is the most common day, March 13 the rarest
March 1#147 of 366 ยท 10,910 births a yearMost common and rarest March birthdays
The five most common March birthdays
Why March ranks #7
March is one of the flattest months of the year: its most common and rarest dates are only 6% apart.
- St. Patrick's Day. Marchย 17 is an ordinary mid-March birthday, #184 of 366, right on the year's average. A cultural holiday is not a hospital holiday.
- The 13th. The rarest March date is Marchย 13, #345. The same superstition shows in most months: the 13th runs below the 12th and the 14th.
- Around the world. In France, Japan and the Philippines, March is the rarest birth month of the year.
March in 27 countries
March is #7 of the twelve in the United States. Across the other 26 countries it runs from #1 in Argentina, Brazil and Peru to #12 in France, Japan and the Philippines. It is the most common birth month in 3 of them.
RarestMost common
March against the other eleven
March averages about 10,658 births per day, the 6th rarest of the twelve. By total births it climbs to #6, helped by its 31 days.
March is #7 of the twelve by births per day
About 10,658 a day in the United States; September, the most common, has 11,448.
Quick answers
Is March a rare birth month?
Not really. In US birth records March is the 6th rarest of the twelve, with about 10,658 births per day. Marchย 1 is the most common March birthday; Marchย 13 is the rarest.
How many babies are born in March?
About 330,383 a year in the United States, #6 of the twelve by total births. Per day that is about 10,658, the 6th rarest of the twelve.
What is the most common March birthday?
Marchย 1, #147 of 366 in the United States, with about 10,910 births a year (+0.6% against an average day). The rarest March date is Marchย 13, #345.
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.