Anyone have trouble braking in winter conditions?

[kelsfine69]

My 87 likes to lock up the fronts and the rears don't lock up unless you really get on the breaks. It is only noticeable in the winter. In the summer everything is fine. Does anyone else have this problem? I think it might be the way it is but driving some fairly new vehicles over the years its a driving experience. I know the front brakes are good and I replaced the backs with new everything( shoes,cylinders,drums) in the spring and still the same. The old throw it in neutral trick stops better. It doesnt have a high idle or anything either??