The 10 rarest birthdays are:
- December 25
- January 1
- December 24
- July 4
- January 2
- December 26
- November 27
- November 23
- November 25
- October 31
These dates are generally less common due to their association with holidays or specific calendar patterns. For example, Christmas Day (December 25) and New Year's Day (January 1) are widely recognized holidays, often discouraging scheduled inductions or planned cesarean sections.
While the rarest U.S. birthdays outside of holidays are April 1 and April 13, these dates still fall within the top 10 least common birthdays.
It's worth noting that these rankings may vary slightly depending on the data source and geographical location.
