How Rare Is My.

A little curiosity. A real number.

How rare is a September 1 birthday?

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Birthday rarity

September 1

1 in 379

U.S. births · 2000–2014

Rarer than 83.3% of other dates

#305 of 366 dates
#1 is most common10,932 births per occurrence
Average when this date occurs

SSA via FiveThirtyEight · CC BY 4.0
Rank uses all births, including leap-day frequency.

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Rank #305 of 366. Compare with other September birthdays or read the sources and method.