Here are some tips to keep your pets safe during cold weather:
Cold weather may worsen some medical conditions such as arthritis. Your pet should be examined by a veterinarian at least once a year, and it's as good a time as any to get him/her checked out to make sure (s)he is ready and as healthy as possible for cold weather.
Know the limits
Just like people, pets' cold tolerance can vary from pet to pet based on their coat, body fat stores, activity level, and health. You will probably need to shorten your dog's walks in very cold weather to protect you both from weather-associated health risks. Arthritic and elderly pets may have more difficulty walking on snow and ice and may be more prone to slipping and falling. Long-haired or thick-coated dogs tend to be more cold-tolerant, but are still at risk in cold weather. Short-haired pets feel the cold faster because they have less protection. Pets with diabetes, heart disease, kidney disease, or hormonal imbalances (such as Cushing's disease) may have a harder time regulating their body temperature, and may be more susceptible to problems from temperature extremes. The same goes for very young and very old pets.
Cats and dogs should be kept inside during cold weather. It's a common belief that dogs and cats are resistant than people to cold weather because of their fur, but it's untrue. Longer-haired and thick-coated dog breeds, such as huskies and other dogs bred for colder climates, are more tolerant of cold weather; but no pet should be left outside for long periods of time in very cold weather.
Make some noise
A warm vehicle engine can be an appealing heat source for outdoor and feral cats, but it's deadly. Check underneath your car, bang on the hood, and honk the horn before starting the engine to encourage feline hitchhikers to abandon their roost under the hood.
Clean up any antifreeze spills quickly, as even small amounts of antifreeze can be deadly. Make sure your pets don't have access to medication bottles, household chemicals, potentially toxic foods such as onions, xylitol (a sugar substitute) and chocolate.
Odds are your pet will be spending more time inside during the winter, so it's a good time to make sure your house is properly pet-proofed. Use space heaters with caution around pets, because they can burn or they can be knocked over, potentially starting a fire. Check your furnace before the cold weather sets in to make sure it's working efficiently, and install carbon monoxide detectors to keep your entire family safe from harm. If you have a pet bird, make sure its cage is away from drafts.