Exactly! It's also worth stressing /why/ they wore these crazy clothes: houses were barely heated at all.

There's a scene where Jane looks out over the garden and through the frost on the inside of the window. Houses had fireplaces, and you could warm up if you stood by the fire, but most of most rooms was very cold, and below zero C in winter.

They wore many, many layers of clothing because it was a vital part of keeping warm. You'll notice Jane doesn't dress up to go out, she just steps out into the snow. All she needs to do to be in effectively outdoor winter gear is lift the outermost layer of fabric over her arms and head haha.