Forget what you think you know about canine health & behavior.
"1. A cold, wet nose indicates good health.
The state of a dog's snout is no sure sign of health. Normal canine body temperature ranges from 101 to 103 degrees; however, veterinarians agree a dog may still have a cold, wet nose while running a temperature of 105 degrees. Never disregard other possible signs of illness simply because a dog's nose says otherwise.
Conversely, a dry nose is no need for panic. An afternoon romp in the middle of summer may leave your pooch slightly dehydrated. Be sure plenty of cool, fresh water is available to your dog at all times. Consult a veterinarian if the condition persists more than a day or two or if other symptoms are present."
Cold, Wet Noses are Good, Right?
"A cold, wet nose is one sign of good health in dogs and cats. However, even a healthy pet can have a warm dry nose on occasion. And really sick pets can also have cold, wet noses. What does this all mean? Simply that any one indicator of health is not 100% accurate all the time. Sick pets with cold noses should be seen by your veterinarian. By the same token, pets with warm, dry noses that are showing other symptoms such as lethargy or are not eating should also be seen by a doctor."