If you’re looking for a dog that will do well living outside either as a guard dog, farm dog, or just an outside dog in general then you may want to talk to your vet to find out the best breeds for the job. For instance, small dog breeds don’t do well with outdoor living mainly due to their size and their vulnerability to predators. Large dog breeds that often do well outdoors include the Bernese Mountain dog, Australian Shepherd, Bearded Collie, and Siberian Husky. These breeds in particular due well to changing environmental temperatures especially the colder temperatures. They also do well as guard dogs as they are naturally protective of their territory. It’s important to remember, however, that even though these breeds do well outdoors, your Glendale, AZ vet can tell you if the temperatures are extremely cold or extremely hot then they need to be brought in doors.
More information here: https://bellanimalhospital.com/