Is January 13 a rare birthday? Rare

Rarer than 95% of all 366 dates.

January 13 #348
Most commonSeptember 9RarestDecember 25
Cartoon birthday scene for January 13: a child behind a cake whose candles spell the date
At a glance

January 13 in numbers

The odds, the star sign and the other dates that come with it.

Born each year≈ 10,309in the United States — about 892,000 of them are alive today
In a full stadium130 peopleof 50,000 were born on January 13
On the day itselfEvery 8 secondsa baby is born on January 13 somewhere in the United States
Star signCapricornrarer than 21 of the 29 Capricorn birthdays
Half-birthdayJuly 13six months later, to the day
Conceived aroundApril 22A spring evening, apparently.
Birth frequency by rank

Where January 13 ranks

From most common birthday to rarest, January 13 ranks in position #348, with 10,309 births a year. 347 other dates are more common. 17 dates are within 1% of its count, anywhere from #332 to #349, so the exact position is a close thing.

56 years of records

January 13 through the years

Where it ranked in the United States, year by year.

Fell on a weekdayOn a weekend
rarestmost
common
1969, Monday: rank #201 of 365, 9,834 births1970, Tuesday: rank #133 of 365, 10,580 births1971, Wednesday: rank #42 of 365, 10,664 births1972, Thursday: rank #130 of 366, 9,285 births1973, Saturday: rank #271 of 365, 8,184 births1974, Sunday: rank #344 of 365, 7,352 births1975, Monday: rank #217 of 365, 8,619 births1976, Tuesday: rank #126 of 366, 9,048 births1977, Thursday: rank #146 of 365, 9,450 births1978, Friday: rank #206 of 365, 9,154 births1979, Saturday: rank #295 of 365, 8,649 births1980, Sunday: rank #355 of 366, 8,291 births1981, Tuesday: rank #174 of 365, 10,163 births1982, Wednesday: rank #218 of 365, 10,182 births1983, Thursday: rank #221 of 365, 10,190 births1984, Friday: rank #244 of 366, 9,838 births1985, Sunday: rank #361 of 365, 8,247 births1986, Monday: rank #249 of 365, 10,206 births1987, Tuesday: rank #231 of 365, 10,581 births1988, Wednesday: rank #238 of 366, 10,685 births1989, Friday: rank #252 of 365, 10,606 births1990, Saturday: rank #323 of 365, 9,295 births1991, Sunday: rank #332 of 365, 8,990 births1992, Monday: rank #252 of 366, 10,951 births1993, Wednesday: rank #227 of 365, 11,257 births1994, Thursday: rank #219 of 365, 11,212 births1995, Friday: rank #222 of 365, 11,071 births1996, Saturday: rank #302 of 366, 8,488 births1997, Monday: rank #247 of 365, 10,267 births1998, Tuesday: rank #136 of 365, 11,850 births1999, Wednesday: rank #194 of 365, 11,626 births2000, Thursday: rank #220 of 366, 11,556 births2001, Saturday: rank #282 of 365, 8,647 births2002, Sunday: rank #349 of 365, 7,355 births2003, Monday: rank #248 of 365, 11,017 births2004, Tuesday: rank #179 of 366, 12,387 births2005, Thursday: rank #223 of 365, 12,121 births2006, Friday: rank #243 of 365, 11,801 births2007, Saturday: rank #294 of 365, 8,556 births2008, Sunday: rank #350 of 366, 7,319 births2009, Tuesday: rank #197 of 365, 12,379 births2010, Wednesday: rank #194 of 365, 12,089 births2011, Thursday: rank #222 of 365, 11,644 births2012, Friday: rank #237 of 366, 11,201 births2013, Sunday: rank #346 of 365, 7,030 births2014, Monday: rank #241 of 365, 11,436 births2015, Tuesday: rank #173 of 365, 11,924 births2016, Wednesday: rank #231 of 366, 11,448 births2017, Friday: rank #226 of 365, 11,168 births2018, Saturday: rank #282 of 365, 8,068 births2019, Sunday: rank #355 of 365, 6,707 births2020, Monday: rank #238 of 366, 10,339 births2021, Wednesday: rank #246 of 365, 10,139 births2022, Thursday: rank #177 of 365, 10,909 births2023, Friday: rank #186 of 365, 10,682 births2024, Saturday: rank #306 of 366, 7,602 births1970198019902000201020202024

On a weekend it slips to #322, from #205 on a working day

Inductions and planned caesareans are booked on working days, so 25.4% fewer babies arrive and the date falls down the ranking. Each bar is the average rank of the years it landed on that day.

#237
Mon
#169
Tue
#199
Wed
#195
Thu
#227
Fri
#294
Sat
#349
Sun
Most common year
1971#42 of 365Wednesday · 10,664 births
Rarest year
1985#361 of 365Sunday · 8,247 births
Weekend years
16 of 5629% of the record2024 was the most recent
Around the world

January 13 in other countries

January 13 is the 19th rarest birthday in the United States. It is among the 50 rarest in 7 of the 26 other countries, and ranges from #95 in Chile to #357 in Ecuador.

  1. Chile

    #95 of 366

    702 births on an average January 13

    DEIS, 1990–⁠2017
  2. Philippines

    #137 of 366

    4,562 births on an average January 13

    PSA, 2006–⁠2024
  3. Finland

    #185 of 366

    141 births on an average January 13

    Statistics Finland, 2010–⁠2025
  4. Costa Rica

    #224 of 366

    165 births on an average January 13

    INEC Costa Rica, 2014–⁠2024
  5. Argentina

    #236 of 366

    1,466 births on an average January 13

    DEIS, 2018–⁠2023
  6. Brazil

    #251 of 366

    7,767 births on an average January 13

    DATASUS, 1997–⁠2024
  7. Mexico

    #255 of 366

    4,872 births on an average January 13

    INEGI, 2017–⁠2023
  8. Peru

    #258 of 366

    1,166 births on an average January 13

    INEI, 2019–⁠2025
  9. Hungary

    #260 of 366

    320 births on an average January 13

    KSH, 1970–⁠2020
  10. France

    #264 of 366

    2,105 births on an average January 13

    INSEE, 1998–⁠2024
  11. Guatemala

    #267 of 366

    923 births on an average January 13

    INE Guatemala, 2018–⁠2024
  12. Slovenia

    #272 of 366

    51 births on an average January 13

    SURS, 2000–⁠2025
  13. Switzerland

    #272 of 366

    217 births on an average January 13

    FSO, 1969–⁠2025
  14. Japan

    #273 of 366

    2,720 births on an average January 13

    e-Stat, 1996–⁠2025
  15. Portugal

    #280 of 366

    289 births on an average January 13

    INE Portugal, 1980–⁠2025
  16. New Zealand

    #303 of 366

    154 births on an average January 13

    Stats NZ, 1980–⁠2023
  17. Norway

    #305 of 366

    142 births on an average January 13

    SSB, 2011–⁠2025
  18. Belgium

    #307 of 366

    316 births on an average January 13

    Statbel, 1992–⁠2025
  19. Germany

    #307 of 366

    1,927 births on an average January 13

    Destatis, 2014–⁠2025
  20. Latvia

    #324 of 366

    49 births on an average January 13

    CSB, 1996–⁠2025
  21. Netherlands

    #326 of 366

    479 births on an average January 13

    CBS, 1995–⁠2025
  22. Malaysia

    #329 of 366

    1,338 births on an average January 13

    DOSM, 2000–⁠2022
  23. Denmark

    #338 of 366

    153 births on an average January 13

    Statistics Denmark, 2007–⁠2025
  24. England & Wales

    #350 of 366

    1,727 births on an average January 13

    ONS, 1995–⁠2025
  25. Ireland

    #354 of 366

    158 births on an average January 13

    CSO, 1980–⁠2023
  26. Ecuador

    #357 of 366

    687 births on an average January 13

    INEC, 2013–⁠2023
Zoom out

January against the other eleven

January 13 is the 3rd rarest of the 31 days in January. All January birthdays.

January is the rarest month of the year

An average January day sees 10,394 births in the United States. September is the busiest month, January the quietest.

The whole year

Every date on one grid

In the United States, September is the busiest month of the year to be born in and January the quietest.

Each square is one date

January 13#348 of 36610,309 births a year

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD151015202530
RarestMost common

Compare with a friend

See how January 13 stacks up against someone else's birthday.

YouJanuary 13
#348Rank
10,309Births a year
Friend
Questions

Quick answers

How many babies are born on January 13?

About 10,309 a year in the United States. It was at its most common in 1971, when 10,664 babies were born and it ranked #42 of 365; at its rarest in 1985, with 8,247 births at #361.

Is January 13 a common birthday?

In the United States, January 13 is the 19th rarest of 366 dates, with about 10,309 births a year. That puts it on the rarer side of the calendar.

What is the rarest January birthday?

In the United States, January 1: the 2nd rarest of all 366 dates, with about 7,731 births a year. The most common January birthday is January 4, the 179th most common of the year.

How precise is the ranking?

In the middle of the calendar it is not exact. 17 other dates are within 1% of January 13's count, spread from #332 to #349, so the position inside that group would shift with a different set of years. That band is the accurate answer; the rank is the simple one. At the ends — Christmas Day, New Year's Day — nothing is close.

Is January 13 rarer in other countries?

In some. It is rarer in 3 of the 26 other countries we hold daily records for. It is at its rarest in Ecuador, at #357 of 366, and at its most common in Chile, at #95.

Our data

How this is counted

Every date is ranked by how many babies are born on it in the United States. Live births by day of birth from the CDC's National Center for Health Statistics, 1989–⁠2024.

Read the full methodology →

Updated October 2026