Javier Garcia said he was driving his wife Gladys to the hospital in Lancaster and they pulled to the side of the road when it became apparent they would not make it in time for the birth, KNBC-TV, Los Angeles, reported Wednesday.
"He just came out," Javier Garcia said. "It was too fast."
Garcia delivered his son, Noah, with guidance from an emergency dispatcher.
"The baby has a nice cry," Capt. Lester Fuzell of the Los Angeles County Fire Department said. "Dad did fine. These situations do occur and you never really know when Mother Nature decides that new bundle of joy is going to come."
The mother and baby were said to be doing well at Antelope Valley Hospital, KTLA-TV, Los Angeles, reported.