I don't subscribe to the "no white after labor day" rule!!
As far as I'm concerned, if it looks great, keeps you warm and makes you confident...WEAR IT!!
For the life of me, I can't understand why on the darkest and cloudiest days of the year we all choose to wear dark colors. Ok, Ok...in places where you have snow banks 6 feet high I admit you run the risk of disappearing into the snow. But seriously, in the cold but snow-less states...who cares?
That being said, I'm all for wearing this Winter White suit. It's the perfect outfit to lighten up those drab winter days. I would style this suit with a beautifully colored silk scarf...an Hermes if you score can one in a vintage store with a beautiful knee high boot with a 3+ inch heel will polish it off. If you are really adventurous or work in a creative environment that allows it...as great hat in a pop of color will make quite a statement.