The ceramic cookers probably hold temp better. Also my smoker from the Good One has a winter insulated cover available for colder climates. Maybe a google search would find something that would fit your cooker. Truly cold weather does suck to coom outdoors in. Thenother option would be to build a small cookhouse with a ceiling vent to let the smoke out. That would be very cool.
i did find this, wonder if it would fit
https://bbqguru.com/storenav?CategoryId=9&ProductId=81