In the last three years, even if the expected winter didn’t still come to Winterfell, the winter has come to the northern hemisphere again. We can conclude that there are not expert meteorologists at Westeros, but this is irrelevant with our subject.
Northern hemisphere on this planet is cold anymore. Most people are living in the houses, however there are living creatures at the outside under the cold. The stray animals need more food in these days. Even remaining foods on your plate are enough for that dogs and cats. It is not difficult to deserve their friendships.