The general rule is that most dogs can be outside down to around 45°F safely. But pay attention to signs they are too cold.
Shivering is a sign your dog is losing too much body heat. Bring them inside to warm up.
Put a coat or sweater on your dog before going out in very cold weather under 32°F.
Don't leave dogs out for long periods when it's freezing. Take shorter walks and potty breaks.
Outdoors dogs need a dry, draft-free, insulated shelter to get out of the cold.
Look for signs of frostbite on paws after being out in the snow and ice.
Temperatures below 20°F with wind chill are dangerous. Only take dogs out briefly.