What was the most common birthday in 2012?

Published by Birthday Traffic · September 15, 2026 · Sources and method

December 12most births in 2012a Wednesday, 14,667 births
December 25fewest births in 2012a Tuesday, 6,325 births
Augustbusiest month per day11,790 births per day
Tuesdaybusiest weekday12,565 per day against 7,196 on Sunday

In 2012 the United States recorded 4,000,868 births over 366 days, 10,931 on an average day. The busiest single date was December 12, a Wednesday, with 14,667 births; the quietest was December 25, a Tuesday, with 6,325. Within one year every date has one weekday, so the weekday column below is a fact of that date. 2012 is a leap year, so February 29 is one of its 366 days.

Every day of 2012: recorded U.S. births

Every day of 2012 in calendar order as one line, with the busiest and quietest dates marked and the year’s average day drawn across it.

The regular dips are weekends. The deepest dips are fixed holidays.

The busiest dates of 2012

Dates of 2012 with the most recorded U.S. births
Date	Weekday	Births	% of an average day
December 12	Wednesday	14,667	134.2
December 27	Thursday	14,126	129.2
September 5	Wednesday	13,991	128.0
December 28	Friday	13,888	127.0
September 7	Friday	13,841	126.6
August 14	Tuesday	13,788	126.1
July 3	Tuesday	13,752	125.8
September 6	Thursday	13,709	125.4
October 11	Thursday	13,705	125.4
August 28	Tuesday	13,674	125.1

The quietest dates of 2012

Dates of 2012 with the fewest recorded U.S. births
Date	Weekday	Births	% of an average day
December 25	Tuesday	6,325	57.9
March 11	Sunday	6,497	59.4
April 8	Sunday	6,545	59.9
January 1	Sunday	6,629	60.6
February 26	Sunday	6,707	61.4
April 29	Sunday	6,713	61.4
February 5	Sunday	6,733	61.6
January 29	Sunday	6,733	61.6
January 22	Sunday	6,816	62.4
April 22	Sunday	6,843	62.6

2012 by weekday and by month

Weekend days in 2012 recorded 63% of a weekday’s births per day. The quietest dates above are mostly weekend days and fixed holidays; the busiest are weekdays in late summer. The counts show the association.

2012: births per day by weekday

Seven columns, Monday to Sunday, average recorded births per day in 2012.

2012: births per day by weekday
Weekday	Days	Births per day
Tuesday	52	12,565
Thursday	52	12,459
Wednesday	52	12,406
Friday	52	12,192
Monday	53	11,565
Saturday	52	8,196
Sunday	53	7,196

2012: births per day by month
Month	Births	Births per day
August	365,501	11,790
September	344,333	11,478
July	351,472	11,338
October	349,973	11,289
June	330,785	11,026
November	329,306	10,977
May	333,908	10,771
February	308,262	10,630
December	328,426	10,594
March	328,123	10,585
January	320,661	10,344
April	310,118	10,337

Keep going

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Sources, method and limits

Source for 2012: Social Security Administration daily births for the United States, as compiled by FiveThirtyEight (CC BY 4.0). The 2000–2003 overlap between the two files is taken from the SSA file only. Weekday is taken from the record’s calendar date. Ranks within a year compare single days.

Every figure above comes from the administrative records named here, at the granularity those records publish: a day, a month or a year. Coverage and definitions differ between countries and eras, so two sources are combined only where their documentation states the windows are separate, and the page where that happens says so.

Full method, leap-day treatment and definitions.

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