There are winter dresses out there for sale, and they are warmer than the ones you would wear in the summer, but that is something not enough. Most of them have thicker material, and they do keep the torso warm. However, when it comes to the legs, neck and arms, there are other problems. You can’t imagine how easily these areas can cause someone to shiver unless you have stood out in the winter without those areas being covered. They make a huge difference and most winter dresses to not cover them.
The best you can do is to buy stockings that are thicker than normal nylons for your legs, and to put long sleeved turtlenecks under your winter dresses. This might seem like a lot under a heavy winter jacket, but you will complain about being too hot with that much on your body in the winter. In fact, you seems to be just fine. This seems to work under thinner types of dress as well, but you do try to buy a heavier winter dresses so that you can still remain warm.