All I'd have to say is, lock all of your shit up. I used to keep server equipment out in the frozen 2-story garage for winter, and had a bunch of it stolen by some guy who just drove up and walked right on in. (Also stolen; bikes, ladders, drill, food, toilet paper, and my gas can for the mower) As of now, I wouldn't even CONTEMPLATE outside as an option, winter or summer.

Get a large watercooling or duct system, and out the window with all the joules! That's what I'm building for the horrid summer heat.