I had my Joy in the California desert
Hello Boxermom1434!!!
My Joy is all white and although i live in Boston, MA now for her first 1.5 years we were in the California desert. Very hot, very dry, sun was brutal, and she was fine. The vet we had in CA actually grew up with a white boxer and recommended that we keep her inside during the most brutal times in the sun, which was about 10am to 3pm then the winds would come through the sun would shift and she would be out playing in the yard. I would try to look up what safe sun blocks to use, i don't remeber them first hand. You can absolutely have your dog with you in the desert...to be honest, when the weather was extremely hot, Joy had no desire to even sit outside, she went out to take care of her business and other than that she was perfectly happy spending some lazy time in the house, at night i took her for walks...in the desert heat you won't really feel like going for walks either during the day, it's like walking around in an oven that's been on all day!!!
the things to be sure of are lots of water, sunblock, shade, and when it was necessary, we didn't have a pool so we would spray her with the hose and she loves to bite at the water anyway so it was "fun time" to her...i also let her play with ice cubes or for frozen treats I would use 50/50 chicken broth and water and freeze them in small dixie cups...she loves those!
There is another member on here "walkssoftly" she lives in Arizona, and she has two white boxers, as well as an older white boxer that passed away recently but she did have him with her in Arizona....she's extremely helpful and I know she wouldn't mind if you contacted her and asked her what her experiences have been...
All the best and don't worry dogs are extremely resiliant and you "furbaby" will do just fine with the right approach to the heat!!
Jen and Joy...