Webwhile every birthday is special, some hold an extra hint of rarity. Birthdays like february 29th, december 31st, and other unique dates are truly elusive and occur. Weblet's take a look at the rarest birthdays and what makes them so unique. February 29th (leap day during leap year) is the rarest birthday with only a one in roughly 1,460. March 18, 2024 11 mins read. Have you ever wondered how rare your birthday is? September 9th stands as the most popular birthday in the us. This blog will guide. Webuse online calculators to find birthday rarity. Sept 9 is most common, dec 25 & jan 1 are rare. Feb 29 is rarest (1 in 1,461 chance). Sept is most common month.
