FARMINGDALE, N.Y. — Matt Kuchar is playing his 54th major championship and realized something new as he walked off the 18th green at Bethpage Black.

“I think this is the first time I’ve worn a beanie at the PGA Championship,” he said Monday.

He wasn’t alone.

Tiger Woods was layered in clothing for an early nine holes of practice to beat the rain, with a knit beanie over his cap. From a distance, it was hard to distinguish between tour pros and club pros, major champions and major rookies. All of them were bundled in dark rain gear.

The PGA Championship has moved to May for the first time since 1949, and for the moment, everyone is feeling it.

Temperatures were still in the upper 40s when players headed out for the first official day of practice on the Long Island public course, already soaked from weekend rain with more falling in the afternoon.

Just like Lucas Glover remembers it.

Glover won the last major at Bethpage Black, the 2009 U.S. Open, during a week so inundated with rain that it didn’t finish until Monday afternoon and the maintenance crew kept finding shoes in the muck weeks after it was over.

“Weather was just like this, actually,” Glover said.

It should get better by the time the championship begins on Thursday, with temperatures pushing 70 by the weekend. But a wet course is a long course, and there were examples during morning practice.

Woods played the front nine and had 256 yards into the 524-yard seventh hole, which plays as a par 4 this week. He hammered a 5-wood that came up short. He tried a 3-wood from the same spot and that also failed to reach the green, and at that point Woods jokingly suggested he might consider teeing it up for a driver.