A rodeo clown has miraculously survived after being struck by lightning twice on the same day.

Casey Wagner was taking part in a Rednecks With Paychecks off-road driving event in Saint Jo, Texas, when a storm hit.

He sheltered under a tree and was struck by lightning.

"What I remember is just a loud boom and it dropped me to my knees - and then it hit me again," he told CBS News.

"When I got hit, it was just two big old flashes and then sparks went everywhere."

Mr Wagner said he felt electricity shoot up through his right boot and into his body.

The 31-year-old dropped to his knees when he was struck again.

He was treated by a nurse who was watching the race and then taken to Nacona General Hospital a few miles away.

"At the hospital they said the poncho I was wearing was carrying static because it was one of those plastic ones," he said.

Doctors told him the tingling feeling would last for about a week.

Mr Wagner says only one thing could have kept him alive.

"I give everything to God," he said. "So I owe everything to him, he's the one that kept me alive. I can tell you one thing, I'm going to start going to church more."