I think the best advice is to contact the international student office and see what they say.
It is difficult to advise you as you don't mention your gender nor how fashion-sensitive your are. In addition, you might not be aware that you will probably need several weights of coats/jackets for comfort in variable weather. (I know Singapore "average seasonal highs" vary about 2C, so be prepared for much more variety--40+C--as the seasons change in a continental climate.) It is almost certain to be sub-0C if you arrive in central Indiana in January with a good chance of being -15C, but as spring approaches outerware for deep winter gets too warm for early and late spring.
My advice would be to get a thick sweater and mid-weight jacket that you like along with a warm hat and pair of mittens or lined gloves and arrive wearing that. You will survive heathily for a few days in that no matter what the weather (be thankful for central heating.) Skip the boots for now, many students manage without them, but wear something sensible that covers the whole foot and is easy to walk in because ice and snow can be a problem. See what other people are wearing and what you are comfortable with and then go buy. By late January winterware will be on sale and you'll probably find some things you like at a value price.
Last edited by Descartesz; 10-17-2012 at 06:35 PM.