He ended his career with a .989 fielding percentage. Wynegar logged 10,521 innings behind the plate in his career. Wynegar grew up in York, Pennsylvania, the son of Harold D. Wynegar, Sr., and Dorrea L. "Dee" (Storm) Wynegar. He attended Red Lion High School. He was married first to Gretchen Diane Oas in December 1977, with whom he had three children – a son, and two daughters. They divorced in 1988. He later married his second wife, Deborah.