Animals need to go outside that's a known fact but with the weather as cold as its been frostbite can happen to them just like it would you, here is Kristin Caldwell a Registered Veterinary Technologist and she explains what parts of your animals are easily frost bitten. 

"So the tips of their ears, tips of the tail and their pads on their feet are all really prone to frostbite. You know you'll often see a street cat who is missing their ears or part of their ears because they've lost them due to the frostbite."

All dogs do need out eventually to use the bathroom and burn off some energy, but how can you make it easier and more comfortable for them to go out and to make sure they don't get frost bitten?  Kristin can help you out there too.

"Making sure they can't get lost or dart out of the yard at another dog things like that where they end up getting stuck outside for much longer then anticipated. Being mindful that the gate is shut so maybe going outside with them and get them engaged in a little bit of play so going outside playing the ball those type of things it'll help them get moving and burn off some of that steam."

Having somewhere for them to go for shelter while outside is super important also Kristin explains what you can do for them outside.

"Having an area where they can go to stay warm whether that's a heating pad or a dog house that's got straw in it not just a blanket something that's well insulated. You want to get them up off of you know cement and things like that which can be quite cold or metal objects so really being mindful of where you can place a shelter or heat box."

So if you don't leave your pets outside for too long they should be okay and if you have places for them to go outside and pay good attention to how they're acting in the cold you shouldn't have to make any vet visits about frostbitten limbs.