cotton tail and the same things as coyotes work well. Also fox distress works well.
They are stupid..
I have shot at one, missed, and kept calling only to have it come right back. There are video's of people shooting them with shotguns and almost having to kick them back to shoot them since they were too close.
Out here, if i spot a fox, i always grab the shotgun and wait.. Most of the time I try to see how close i can shoot them to the call. usually it's within a few feet.
As for the weather Logstove, Az has amazingly diverse landscape. We have airid desert sand dunes, thin scrub brush desert, thick lush desert, rolling grass lands, forests, snow, and then the badlands and other stuff. I get out and hunt most of the state, and I have a large tote with saftey gear, and stuff for all area's.. One thing that i have learned in AZ is that if you want to hunt predators, other than in your back yard area, you had better be prepared for all the different eviornments, temps, and conditions.
I have hunted in Phx area in the AM wearing a long sleeve shirt, then mid way up the state in the brush and grass at lunch, to wearing jackets and snow pants at sunset, and camped in the back of my truck and woke up at the south rim of the Grand Canyon to -10 the next morning with 4 inches of snow on the ground.