I dont know to be honest. theres more factors to consider than just the weather. what about wild animals an random people? we had a doberman that was shot in the neck by some random prick going down the road on our own property; an over the years have seen a cougar a bear an a bobcat stroll right on through our yard. maybe better to crate your dogs in the house to save your many precious things from being chewed on an have your neighbor come by an take the dogs out for a walk/potty break an then back in the crates till you arrive home if youre worried about them having accidents in their crates.