baby shower outfit help 😩

Anisa • Im a 29 year old mom to Aviana 👶🏽💛.
So my baby shower is in two weeks and it's in New York my boyfriend and I are going to drive up there but I don't know what to wear . It'll probably be cold but I'm not sure if I should wear a dress or a cute top and jeans . Anyone else having their shower in December in a colder area??? I need ideas and help please 😩😩