Not in these historical U.S. records. February 10 sits near the middle of the 366-date ranking. It ranks #215 of 366 dates by total births from 1994 through 2014. Rank #1 means most common.
February 10 had 232,075 births across 21 occurrences, or 11,051 births per occurrence. That is 0.271% of the 85,712,738-birth sample, or about 1 in 369 recorded births.
Within February, February 10 ranks ninth of 29 dates.
Does February 10 differ from nearby same-weekday dates?
February 10 has slightly more births than its controls in every planned comparison. In SSA 2000–2014, the primary comparison gives +1.3%. The planned comparisons range from +1.0% to +1.6%.
The smallest difference is just under 1% before rounding. It misses the planned 1% threshold, so we treat the result as weak.
In the primary comparison, February 10 was above its controls in twelve years and below them in three.
Baseline ranks use historical U.S. CDC/NCHS and SSA records, 1994–2014. The percentage differences use SSA 2000–2014 alone. Each table row compares February 10 with controls from the same year.
| Comparison | Years | Control observations | Difference |
|---|---|---|---|
| 7 and 14 days, holidays excluded (primary) | 15 | 58 | +1.3% |
| 7 days only | 15 | 28 | +1.0% |
| 14 days only | 15 | 30 | +1.6% |
| 7 and 14 days, no holiday exclusions | 15 | 60 | +1.5% |
How were the comparison dates chosen?
The primary controls are January 27, February 3, February 17, and February 24 in the same year. Each is 7 or 14 days from February 10, so it falls on the same weekday.
In some years, a planned control falls on Washington’s Birthday. We remove that control under the standard observed federal holiday rules. The year keeps its other controls.
By five-year period, the primary differences are +1.9% for 2000–2004, +1.6% for 2005–2009, and +0.3% for 2010–2014.
To combine the years, we divide the summed target births by the summed annual control means. Then we subtract one and multiply by 100. The result is not an average of annual percentages.
Does the February 10 rank change over time?
Somewhat, but less than most dates. We ranked 365 recurring dates by SSA births in each five-year period. February 10 placed #284 in 2000–2004, #271 in 2005–2009, and #179 in 2010–2014. The three ranks span 105 places.
The median span for all 365 recurring dates is 159 places. This span is below that median.
Each period has only five occurrences of February 10. It fell on a weekend twice in 2000–2004, twice in 2005–2009, and once in 2010–2014. The periods with more weekend occurrences have less common ranks.
These ranks use raw birth counts. The ranking-stability study also compares annual shares and weekday-relative scores for every date.
Sources and limits
Baseline totals and ranks use FiveThirtyEight’s pinned U.S. birth files. We use CDC/NCHS for 1994–1999 and SSA for 2000–2014, so no year comes from both sources. Annual comparisons use SSA alone.
The source series have different administrative coverage. These records do not describe worldwide births, everyone alive today, or current birth rates.
The daily totals do not record delivery methods or scheduling decisions. Weekday matching does not remove every seasonal difference. Federal holiday rules identify calendar dates, not hospital schedules.
Use the February guide for the full month ranking. Compare the nearby February 3 and February 14 studies.
The methodology explains ranks and shares. Use the birthday checker to compare another date.