Living in the midwest you never know what the weather will be like. My "delicate" Yorkies don't always like to go out in the rain & snow...but they do LOVE the pish pads! From the day I brought them home at 3 months of age they have been using them regularly. I LOVE the fact that they are washable & reusable. I have purchased a roll for my groomer/breeder and their trainer that has a 10 acre dog park.