Although dogs come equipped with their own fur coat, during the winter they may need a little extra insulation. If there’s snow and ice on the ground, or persistent chilly winds, then a winter jacket for your dog is a good idea. Small or thin-furred breeds, puppies, and senior dogs will generally need a winter coat when the temperature outside feels at or below 32°F (0°C). Once the temperature drops below 20°F (-6.6°C), keep a close eye on your dog, regardless of breed, for signs that they are uncomfortably cold. If you’re putting on a coat to go outside, odds are good that it’s cold enough for your dog to need a coat as well. A good rule of thumb, no matter what the breed, is that if your dog seems cold—shivering, whining, or slowing down—a coat can’t hurt. Dogs get cold just like people do. Intense cold can cause hypothermia, which occurs when a dog’s body temperature falls to dangerously low levels. A good dog coat will cover your dog’s neck, belly, and back.