A total of 34in (86cm) of snow blanketed the city and surrounding areas in the Pennsylvania state.
There was no respite on Boxing Day, with meteorologists registering a grand total of 60in over the two-day period.
Police warned motorists that “roads are dangerous and impassable”, with a number of closures reported.
More snow is forecast on Wednesday.
The officials say the heavy snowstorm is the result of lake-effect snow – when cold air combines with lake water.