July in the birth records
July accounts for 5,450,418 births, or 8.76% of the 62,187,024 records in the SSA 2000–2014 sample. Within this month, July 11 is the most common date, ranked #15 nationally. July 4 has the fewest total records and ranks #362. The table above includes all 31 dates, not just those two extremes.
What makes this month worth a closer look
July includes one of the clearest low-count dates in the annual calendar: July 4. That fixed U.S. holiday appears in the same row in all fifteen years. Its count is a useful contrast with the nearby ordinary dates, and a reminder that “summer birthday” is too broad a category to answer a question about one day.
This is U.S. data. July 4 would not necessarily have the same pattern in countries where it is an ordinary working day. Even in the United States, the table does not distinguish spontaneous and scheduled deliveries. It describes observed births. See the rarest-birthday comparison to place July 4 alongside other low-count annual dates and leap day.
Read your row and make a card
Rank #1 is most common across all 366 dates. “1 in” divides all birth records by the records for that specific date; the daily-average column divides by the number of times the date occurred. A higher “rarer than” percentage means more other dates had higher counts. These are different ways of describing the same historical sample, not estimates of everyone alive today.
Select your date in the table to open the birthday calculator. Save a portrait or landscape result, or combine it with your name. The complete methodology and original FiveThirtyEight source stay available for anyone who wants to check the numbers.