The rarest October birthday is October 31st.
Why October 31st Has Fewer Births
October 31st, widely recognized as Halloween, consistently experiences a lower number of births compared to most other days of the year. This trend is commonly observed with major holidays, as medical professionals often schedule elective procedures, such as inductions and C-sections, for non-holiday dates. Data indicates that births on October 31st average around 9,978 daily in the U.S., positioning it among the least common birthdays.
Understanding Less Common Birth Dates
Birth rates vary throughout the year, with certain dates consistently showing fewer births. These rare dates frequently align with significant holidays or periods when scheduled medical procedures are less common.
Below is an overview of some of the least common birthdays and their average daily birth rates in the U.S.:
| Date | U.S. Average Daily Births |
|---|---|
| November 27 | 9,718 |
| November 23 | 9,883 |
| November 25 | 9,954 |
| October 31 | 9,978 |
As illustrated in the table, October 31st has a notably lower birth rate, making it the least common birthday within the month of October.
