A dog is so great because it will encourage you to get out there in the winter. The temperatures which might normally keep you inside will invigorate a lot of breeds and you will feed off your dogs excitement!! Winter for us is usually a good time of year to work a lot of the northern breed dogs like huskies and malamutes. They have a double coat of hair which keeps them warm even in the most extreme of temperatures!! Other dogs especially with no hair like the Chinese Crested or short hair dogs may need a jacket to keep them warm while in the colder weather!! The most demanding of these interactive dog activities would be appropriate for these cold conditions. Sledding, carting, and other strength and cardiovascular combinations are good.