Where weather was favorable, in key golfing regions like Florida, Southern California and Phoenix, rounds were up as much as 10%, according to the research firm Pellucid. Where weather was bad, in Texas and the Ohio Valley, rounds were down enough to tilt the scales toward the negative. Travel golf also had its effect.
"...destination markets are taking significant rounds hits that aren't related to weather," Pellucid President Jim Koppenhaver, indicating reductions of 9% and 14% respectively in Las Vegas and Hilton Head."
You can read a full article about the research at WorldGolf.com.