Birthdays/December
December 20
252,187 people born in the US between 1994 and 2014 have this birthday — one in 339 of them.
- Rank of 366
- #11one of the busiest
- Births a year
- 12,0091994–2014
- Against an average day
- +7.9%the average day of its own year
- Born 1994–2014
- 252,187one in 339
Your share card
December 20
United States · rank 11/366 · 12,009 births per year (average) · +7.9% versus the average date
CDC/NCHS + SSA · FiveThirtyEight (CC BY 4.0) · 1994–2014
The date in numbers
Over the 21 years from 1994 to 2014, December 20 averages 12,009 births a year, which places it 11th of the 366 dates of the year.
Against the average day of its own year — the measure that takes the growth of the population out — the date runs +7.9%. It is one of the busier dates of the year.
Where a date falls in the week moves the count more than the date itself does: across 1994–2014 the five weekdays average +10.9% against an average day and Saturday and Sunday −27.1%. This date fell on a weekday in 15 of its 21 years and on a weekend in 6, averaging +21.1% and −25.2%. These are counts of births that were registered; the page does not say why they fall this way.
December 20 by the weekday it fell on
In 21 years a date works its way round the week. Each row is the average of the years this one landed on that weekday — a handful of years each, so read the shape, not the decimal.
| Weekday | Births on such a day | Against an average day | Days counted | |
|---|---|---|---|---|
| Monday | 13,121 | +17.8% | 3 years | |
| Tuesday | 13,726 | +23.4% | 3 years | |
| Wednesday | 13,445 | +19.6% | 3 years | |
| Thursday | 13,960 | +23.2% | 3 years | |
| Friday | 13,163 | +21.3% | 3 years | |
| Saturday | 8,731 | −21.6% | 4 years | |
| Sunday | 7,509 | −32.5% | 2 years |
The days either side
- 95December 1711,481 · +3.2%
- 56December 1811,675 · +4.8%
- 19December 1911,935 · +7.2%
- 11December 2012,009 · +7.9%
- 58December 2111,680 · +4.8%
- 107December 2211,388 · +2.2%
- 351December 2310,338 · −7.0%
Names given to the people born on December 20
Everyone counted on this page was born between 1994 and 2014. The most given names of 1994 were Jessica and Michael; of 2014, Emma and Noah. Every year in between has its own list.
Years in this data
Where the numbers come from. Births by exact date, 1994–2014: 1994–2003 from the Centers for Disease Control and Prevention, National Center for Health Statistics (National Vital Statistics System); 2004–2014 from the Social Security Administration. Both files are works of the US government and in the public domain. They are taken from FiveThirtyEight's data repository, which republishes them under CC BY 4.0 — credit to FiveThirtyEight, github.com/fivethirtyeight/data.
The two files overlap in 2000–2003, where the SSA count runs about 2% above the CDC/NCHS one; those four years are taken from the vital-statistics file, so each year has one source. Every date is scored against the average day of its own year before the years are averaged, so the join cannot move a ranking.