In September, when Allied forces had secured footholds in both western and southern France, "Tuscaloosa" returned to the United States for refitting at the Philadelphia Navy Yard. After a short exercise period in Chesapeake Bay, she steamed via the Panama Canal to the west coast and reported to the Commander in Chief, Pacific Fleet. After stopping briefly at San Diego, she proceeded on westward to Pearl Harbor, where she conducted various exercises before steaming to Ulithi to join Commander, 3rd Fleet in January 1945.