PGA Championship competitors at Oak Hill County Club in Pittsford, New York, received a chilly reception Thursday before the first round of the second major of the year began.

The tournament was delayed due to frost.

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A frost delay warning is displayed on a video board on the sixth hole before the first round of the PGA Championship at Oak Hill Country Club on Thursday, May 18, 2023 in Rochester, New York. (Darren Carroll/PGA of America via Getty Images)

Golfers were ordered to stay off the grass as the fairways were covered in a thin layer of frost. Temperatures plunged in parts of New York from Wednesday night into Thursday morning. Fortunately, temperatures are expected to return to the 60s within the course of the day.

The PGA of America said the earliest tee time would be 1 hour and 15 minutes after the practice facility is open.

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Rory McIlroy Internship

Rory McIlroy at the top of his swing on the range during a practice round ahead of the 2023 PGA Championship at Oak Hill Country Club on May 17, 2023 in Rochester, New York. (Keyur Khamar/PGA TOUR via Getty Images)

Shaun Michael is ready to tee off. The honor is awarded to the oldest golfer on the course. He won the PGA at Oak Hill in 2003, his only Tour victory. His group includes Braden Shattuck and Steve Alker. The group will start on hole 1.

The group starting on the 10th hole includes Trey Mullinax, Josh Speight and Kazuki Higa.

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Justin Thomas PGA Championship

Justin Thomas celebrates with the Wanamaker Trophy after the final round of the PGA Championship at Southern Hills Country Club on May 22, 2022 in Tulsa, Oklahoma. (Ross Kinnaird/Getty Images)

Justin Thomas is the defending champion. He won the event last year in a tiebreaker over Will Zalatoris. Thomas has won the PGA Championship twice in his career. He’s the only major he’s ever won.

Associated Press contributed to this report.