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Is it safe for cats to be outside in winter? The answer may surprise you

While we strongly recommend keeping cats indoors for their safety—not to mention your peace of mind—some cats will find their way outdoors no matter what. For the most part, cats can withstand both extreme heat and extreme cold relatively well. But when the temperature begins to dip into the 40s, your fur baby could use a little help staying warm. Here’s what you need to know about cat safety during the colder months, from which potential dangers are brought on by winter to when you should bring your cat indoors. 

A black cat with a dusting of snow on her coat stands outside.

How cold is too cold for cats?

Despite their small size, cats are relatively hardy, resilient critters. In fact, cats are considered apex predators because of their success rate at hunting prey. If humans vanished without a trace, cats would be able to fend for themselves in the wild. That being said, cats are not invulnerable. So, how cold is too cold for cats outside in winter? That depends on the cat in question. It also depends on your cat’s outdoor accommodations. 

Outdoor-only cats are better acclimatized to cold weather than are cats who spend the bulk of their time indoors. However, vets advise against leaving even outdoor cats in the cold when the average daily temperature drops below 45 degrees Fahrenheit. In other words, if the temperature is 42 degrees on Monday and 52 degrees Tuesday through Sunday, your outdoor kitty will be okay. On the other hand, if the temperature reaches only 45 degrees over a seven-day period, it’s time to bring your cat indoors. 

How do I keep my cat warm during the winter?

Don’t lose hope if your outdoor cat refuses to come inside during the winter. There are several ways you can keep your stubborn fur baby warm and safe outdoors. Here are a few tips. 

Invest in a shelter

Purchasing a cat house—or building one on your own—will protect your outdoor cat from the elements. Make sure the entrance is small in order to keep out predators and help the shelter retain heat. (Installing a plastic door flap helps, too.) Fleece blankets, straw, and self-warming cat beds are all ideal insulation for your cat’s cozy new place. 

Provide warm food and water

Preventing your cat’s water from freezing over during the winter poses a problem for outdoor cat parents. Placing your cat’s shelter near your home not only will help block out the wind, but also will allow you to use an electric heating bowl to keep your cat’s water from freezing. Cats need more calories during the winter, so we recommend warming a dish of canned food and mixing it in with her kibble. Warming her food will also release its aroma, making her more inclined to consume those much-needed extra calories. 

Bundle up your cat before letting her outside

Winter gear like sweaters and booties are essential if you have an indoor cat who enjoys occasionally roaming the yard. Cats who spend most of their time indoors feel the cold more intensely than cats who live exclusively outdoors, so make sure you bundle up Miss Kitty before allowing her to play in the yard.

A chubby tabby cat with tufted ears stands on a snow bank.

What are winter’s dangers to cats?

Freezing temperatures aren’t the only threat to your outdoor fur baby during the winter months. Here are several dangers to cats you’ll need to look out for during wintertime.


Antifreeze is a cold-weather essential if we want our cars to remain functional. Unfortunately, antifreeze is also a toxic substance to cats. A tiny amount of antifreeze can kill a cat, so you’ll want to take precautions when adding antifreeze to your car. Wipe up any droplets immediately, and make sure you store antifreeze where curious cats can’t reach it. Remember, not even “pet safe” antifreeze is completely safe for your cat, though it’s less likely to prove fatal if ingested. Signs of antifreeze poisoning include:

  • vomiting
  • lethargy
  • seizures
  • respiratory distress
  • increased urination

If you suspect that your cat has ingested antifreeze, you should take her to the vet immediately. 


Snow can decrease a driver’s visibility, putting your cat at an increased risk of being hit by an automobile. But that’s not the only danger that cars and trucks pose during the winter. Cats often crawl beneath hoods to stay warm, so you should knock on the hood of your vehicle before you start it. If a cat is hiding beneath the hood, she could be severely injured or killed by the fan belt. 

Ice Melts

Just as antifreeze is necessary to keep our cars running, ice melts help keep roads and sidewalks clear. Unfortunately, cats who stroll across ice melts can suffer a variety of health consequences. If pet-friendly ice melts are used, mild skin irritation and digestive issues can occur. However, ingesting some ice melts can be fatal to your cat, causing symptoms similar to antifreeze consumption.

A green-eyed cat strolls outside in the snow.

Cats are stubborn and fiercely independent, but that doesn’t mean they don’t need extra attention during winter. Providing your outdoor kitty with a warm shelter, taking extra precautions when using antifreeze, and checking your car before starting it are all vital to your cat’s wintertime safety. If you can’t keep your cat indoors, at least you can do your part to make her a little safer outdoors.

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