For the next five months, "Anderson" operated locally put of Pearl Harbor and Lahaina Roads. Her operations within the Hawaiian chain took her to Palmyra (22 July) and Christmas Island (23 July); and included such evolutions as antiaircraft and machine gun practices; battle depth charge practices, and torpedo practices, often operating in company with destroyers, light cruisers, and battleships. Interspersed were periods of upkeep back at Pearl Harbor alongside between 26 and 28 October, and drydocking (28 to 29 October and again from 30 October to 4 November). The ship also patrolled assigned areas adjacent to the Lahaina Roads anchorage, off Maui, and off Honolulu and Pearl Harbor, intercepting and identifying many merchantmen, and local craft, such as fishing boats, as well as noting the movements of American warships. Following this intensive period of operations in Hawaiian waters, "Anderson" took a departure from Pearl Harbor on 2 December 1940, bound for the West Coast in company with the rest of Destroyer Squadron (DesRon) 8.