Nunzeo doesn't go out at all when its raining or snowing, or if its too cold, he's aa bit wussy. He does have a hutch on his run, and part of the run has a blanket on the floor incase its too cold for his toes (maybe I'm the wussy one that worries too much) I think he's ok with not going out though, because he has a very large bedroom to play in all the time.