Is August 13 a rare birthday? Ordinary

More common than 72% of all 366 dates.

August 13 #103
Most commonSeptember 9RarestDecember 25
Cartoon birthday scene for August 13: a child behind a cake whose candles spell the date
At a glance

August 13 in numbers

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

Born each year≈ 11,121in the United States — about 961,000 of them are alive today
In a full stadium140 peopleof 50,000 were born on August 13
On the day itselfEvery 8 secondsa baby is born on August 13 somewhere in the United States
Star signLeothe rarest of the 31 Leo birthdays
Half-birthdayFebruary 13six months later, to the day
Conceived aroundNovember 20A cosy autumn night, then.
Birth frequency by rank

Where August 13 ranks

From most common birthday to rarest, August 13 ranks in position #103, with 11,121 births a year. 263 other dates are rarer. 26 dates are within 1% of its count, anywhere from #92 to #118, so the exact position is a close thing.

56 years of records

August 13 through the years

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

Fell on a weekdayOn a weekend
rarestmost
common
1969, Wednesday: rank #35 of 365, 10,802 births1970, Thursday: rank #66 of 365, 11,060 births1971, Friday: rank #91 of 365, 10,368 births1972, Sunday: rank #301 of 366, 8,065 births1973, Monday: rank #74 of 365, 9,208 births1974, Tuesday: rank #6 of 365, 10,213 births1975, Wednesday: rank #38 of 365, 9,493 births1976, Friday: rank #52 of 366, 9,538 births1977, Saturday: rank #263 of 365, 8,669 births1978, Sunday: rank #275 of 365, 8,547 births1979, Monday: rank #98 of 365, 10,096 births1980, Wednesday: rank #48 of 366, 10,923 births1981, Thursday: rank #43 of 365, 11,088 births1982, Friday: rank #104 of 365, 10,678 births1983, Saturday: rank #266 of 365, 9,158 births1984, Monday: rank #71 of 366, 11,017 births1985, Tuesday: rank #29 of 365, 11,636 births1986, Wednesday: rank #85 of 365, 11,158 births1987, Thursday: rank #82 of 365, 11,418 births1988, Saturday: rank #262 of 366, 9,917 births1989, Sunday: rank #283 of 365, 9,464 births1990, Monday: rank #169 of 365, 12,023 births1991, Tuesday: rank #17 of 365, 12,992 births1992, Thursday: rank #107 of 366, 12,094 births1993, Friday: rank #165 of 365, 11,710 births1994, Saturday: rank #259 of 365, 9,474 births1995, Sunday: rank #315 of 365, 8,421 births1996, Tuesday: rank #30 of 366, 12,407 births1997, Wednesday: rank #87 of 365, 11,963 births1998, Thursday: rank #48 of 365, 12,487 births1999, Friday: rank #129 of 365, 11,924 births2000, Sunday: rank #319 of 366, 8,174 births2001, Monday: rank #220 of 365, 11,446 births2002, Tuesday: rank #23 of 365, 13,284 births2003, Wednesday: rank #80 of 365, 12,955 births2004, Friday: rank #222 of 366, 12,036 births2005, Saturday: rank #262 of 365, 8,937 births2006, Sunday: rank #323 of 365, 7,871 births2007, Monday: rank #196 of 365, 12,989 births2008, Wednesday: rank #49 of 366, 13,671 births2009, Thursday: rank #71 of 365, 13,202 births2010, Friday: rank #210 of 365, 11,932 births2011, Saturday: rank #269 of 365, 8,362 births2012, Monday: rank #150 of 366, 11,987 births2013, Tuesday: rank #35 of 365, 12,869 births2014, Wednesday: rank #60 of 365, 12,736 births2015, Thursday: rank #58 of 365, 12,591 births2016, Saturday: rank #262 of 366, 8,827 births2017, Sunday: rank #313 of 365, 7,700 births2018, Monday: rank #189 of 365, 11,332 births2019, Tuesday: rank #22 of 365, 12,324 births2020, Thursday: rank #37 of 366, 11,631 births2021, Friday: rank #110 of 365, 11,400 births2022, Saturday: rank #256 of 365, 8,661 births2023, Sunday: rank #316 of 365, 7,124 births2024, Tuesday: rank #65 of 366, 11,352 births1970198019902000201020202024

On a weekend it slips to #284, from #87 on a working day

Inductions and planned caesareans are booked on working days, so 26.3% fewer babies arrive and the date falls down the ranking. Each bar is the average rank of the years it landed on that day.

#146
Mon
#28
Tue
#60
Wed
#64
Thu
#135
Fri
#262
Sat
#306
Sun
Most common year
1974#6 of 365Tuesday · 10,213 births
Rarest year
2006#323 of 365Sunday · 7,871 births
Weekend years
16 of 5629% of the record2023 was the most recent
Around the world

August 13 in other countries

August 13 is the 103rd most common birthday in the United States. It is among the 50 most common in 1 of the 26 other countries, and ranges from #27 in Denmark to #307 in Brazil.

  1. Denmark

    #27 of 366

    178 births on an average August 13

    Statistics Denmark, 2007–⁠2025
  2. Belgium

    #61 of 366

    338 births on an average August 13

    Statbel, 1992–⁠2025
  3. Netherlands

    #71 of 366

    520 births on an average August 13

    CBS, 1995–⁠2025
  4. Finland

    #76 of 366

    147 births on an average August 13

    Statistics Finland, 2010–⁠2025
  5. Hungary

    #77 of 366

    338 births on an average August 13

    KSH, 1970–⁠2020
  6. Portugal

    #95 of 366

    303 births on an average August 13

    INE Portugal, 1980–⁠2025
  7. France

    #101 of 366

    2,197 births on an average August 13

    INSEE, 1998–⁠2024
  8. New Zealand

    #108 of 366

    159 births on an average August 13

    Stats NZ, 1980–⁠2023
  9. Norway

    #114 of 366

    162 births on an average August 13

    SSB, 2011–⁠2025
  10. Germany

    #116 of 366

    2,111 births on an average August 13

    Destatis, 2014–⁠2025
  11. Slovenia

    #116 of 366

    55 births on an average August 13

    SURS, 2000–⁠2025
  12. Malaysia

    #141 of 366

    1,407 births on an average August 13

    DOSM, 2000–⁠2022
  13. Latvia

    #147 of 366

    55 births on an average August 13

    CSB, 1996–⁠2025
  14. Costa Rica

    #182 of 366

    167 births on an average August 13

    INEC Costa Rica, 2014–⁠2024
  15. Mexico

    #193 of 366

    4,988 births on an average August 13

    INEGI, 2017–⁠2023
  16. Ireland

    #195 of 366

    167 births on an average August 13

    CSO, 1980–⁠2023
  17. England & Wales

    #198 of 366

    1,778 births on an average August 13

    ONS, 1995–⁠2025
  18. Guatemala

    #214 of 366

    939 births on an average August 13

    INE Guatemala, 2018–⁠2024
  19. Japan

    #253 of 366

    2,733 births on an average August 13

    e-Stat, 1996–⁠2025
  20. Philippines

    #256 of 366

    4,324 births on an average August 13

    PSA, 2006–⁠2024
  21. Chile

    #268 of 366

    679 births on an average August 13

    DEIS, 1990–⁠2017
  22. Switzerland

    #279 of 366

    216 births on an average August 13

    FSO, 1969–⁠2025
  23. Ecuador

    #282 of 366

    736 births on an average August 13

    INEC, 2013–⁠2023
  24. Peru

    #283 of 366

    1,148 births on an average August 13

    INEI, 2019–⁠2025
  25. Argentina

    #284 of 366

    1,410 births on an average August 13

    DEIS, 2018–⁠2023
  26. Brazil

    #307 of 366

    7,517 births on an average August 13

    DATASUS, 1997–⁠2024
Zoom out

August against the other eleven

August 13 is the rarest of the 31 days in August. All August birthdays.

August is the 2nd most common month of the year

An average August day sees 11,405 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

August 13#103 of 36611,121 births a year

JanJFebFMarMAprAMayMJunJJulJAugASepSOctONovNDecD151015202530
RarestMost common

Compare with a friend

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

YouAugust 13
#103Rank
11,121Births a year
Friend
Questions

Quick answers

How many babies are born on August 13?

About 11,121 a year in the United States. It was at its most common in 1974, when 10,213 babies were born and it ranked #6 of 365; at its rarest in 2006, with 7,871 births at #323.

Is August 13 a common birthday?

In the United States, August 13 is the 103rd most common of 366 dates, with about 11,121 births a year. That makes it an ordinary birthday: neither rare nor especially common.

What is the rarest August birthday?

In the United States, August 13: the 103rd most common of all 366 dates, with about 11,121 births a year. The most common August birthday is August 16, the 16th most common of the year.

How precise is the ranking?

In the middle of the calendar it is not exact. 26 other dates are within 1% of August 13's count, spread from #92 to #118, 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 August 13 rarer in other countries?

In some. It is rarer in 19 of the 26 other countries we hold daily records for. It is at its rarest in Brazil, at #307 of 366, and at its most common in Denmark, at #27.

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