While wearing a collar and leash is essential for your dog’s safety, the weather can determine whether they need anything else. If your dog will spend most of their time outdoors during the day and you live in a temperate climate (60°F or below) in the summer or in a winter climate (50°F or below), they probably do not need any additional clothing.
If you live in a cooler climate, your dog may need to wear a sweater or jacket for protection against the elements. However, it dogs wear does not make sense for a dog to wear any type of clothing, unless you live somewhere it is extremely cold (50°F or below).
The majority of dogs will not wear clothing if the temperature outside is 50°F or below and you are not leaving your pet outside for longer than 10 minutes. There is no point in putting any type of clothing on your dog, including sweaters, coats, or jackets.
They should not be wearing any kind of footwear because they would slip on the snow or ice. In fact, they should not even have any footwear in that case.
Dogs will not wear clothing in hot climates, either. They will only wear it for protection. Your dog needs to wear a collar and leash, however, even if they are not going outside.