Doug,
Well-said about the truth on heat and humidity. Every time I try to tell someone the real truth about it, they gloss over or even get perturbed, because I just robbed them of a summer complaint/excuse that's it's too hot.
However, playing in 40 degree temperatures and walking-and-carrying ain't that bad. Layers, my friend. I don't even wear a jacket. I wear a glove on both hands, instead of just one. It's golf!
Tom I,
The "excuse" that putting away the sticks for the winter is a "natural" ritual and is what northern folks prefer is hogwash, IMO. Jealousy, I say. That's one of the main reasons I moved south, to play year round and rarely have to worry about driving in ice and snow. Why do so many Yankees/midwesterners/Canucks go to Myrtle Beach/Scottsdale/Florida/etc. in the winter? Why do so many Tour players come from warm weather climates? You can play year round.
Sure a few Tour players are tokens from cold weather climes, but they're more the exceptions. Lehman from MN, Stricker from WI, Sindelar/Hulbert/Sluman/Levi from NY, Faxon from RI, Nicklaus/Cook from OH. Now list off the Californians, Texans, Floridians, etc.