@Diva, he is an indoor cat in the meaning that he isn't allowed outside unsupervised unless he is in his catio. I had a cat escape through the door and he never came home that night and I found his body in the road. He had been hit by a car. I am pretty traumatized by that so I am not willing to risk that happening to Oliver.
is he an indoor cat only ? Because i havent seen cats that are much bothered by weather around, i mean ours disappear for a day or 2 in -30 and they fine, i guess its also the genetics and such that vary in countries