A dry nose in a dog may be because the dog is sick and has a fever. When a dog is sick, he will not lick his nose for a long time, so the dog's nose is dry. One of the main symptoms in the early stage of canine distemper is a dry nose, which is also accompanied by dry and cracked pads on the paws.

Under normal circumstances, dogs will keep their noses very moist, which can make their sense of smell more sensitive, so the color of the dog's nose should be black and slightly moist.