A Michigan couple are celebrating the unique occurrence of both their children being born on Leap Days.

Chad and Melissa Croff, of Columbus, welcomed their daughter, Evelyn Joy, early on Monday morning at Henry Ford Macomb Hospital in Clinton Township.

She arrived 10 days past her February 19 due date. The couple's other daughter, Eliana Adaya, was born on February 29 2012, the last Leap Year.

Mrs Croff said she did not anticipate that both her children would be born on the same day, let alone Leap Day.

The couple did not comment on which date the children will celebrate their birthdays during non-Leap Years.