Be careful of streets that do not allow overnight parking during the winter (marked with signs - from 12/1 to 4/1) or streets that do not allow parking if the snow is over 2" (again marked). Some blocks have so many parking signs it is confusing. When in doubt, follow the one that seems the most restrictive.
Here is a link to a city site about winter parking restrictions:
http://egov.cityofchicago.org/city/w...OID=-536889066