After a shakedown cruise,
Howorth was assigned to
Destroyer Squadron 21 (DesRon 21). The flotilla set sail on 22 July 1944, as part of the escort for a
convoy carrying
Marines to
Pearl Harbor. The convoy arrived after seven days at sea, and
Howorth remained in
Hawaii until 25 August, at which point she sailed for
Hollandia, along with the
ammunition ship .
Howorth was assigned to Destroyer Division 41 (DesDiv 41), of the
7th Fleet. Her first combat experience was in the
Solomon Islands on
anti-submarine and escort duty.
The Philippines Howorth arrived off
Leyte on 22 October, three days after the initial landings began. She guarded the transport anchorages during the
Battle of Leyte Gulf, and did not see direct action during the battle.
Howorth made several convoy trips to Kossol Roads,
Guam, and Manus, before returning to the Philippines for the
battle at Ormoc on 7 December 1944.
Howorth also participated in the
Battle of Mindoro, during which she was attacked by several
kamikazes, one of which slightly damaged
Howorths mast before the plane crashed into the sea. On 9 January 1945, the
Invasion of Lingayen Gulf began.
Howorth arrived with the first reinforcement group four days later on the 13th, which came under kamikaze attacks while en route.
Howorth provided fire support to the invasion forces, provided anti-aircraft support for the invasion fleet, and patrolled the flanks of the fleet.
Iwo Jima Howorth also took part in the
invasion of Iwo Jima, arriving on 19 February.
Howorth again provided fire support and anti-aircraft protection during the invasion and subsequent fighting on
Iwo Jima. On 14 March,
Howorth departed Iwo Jima for a short rest at
Ulithi.
Okinawa Howorth was assigned to screen a convoy from
Ulithi bound for
Okinawa, arriving on 1 April. After arrival at Okinawa, she again provided fire support and anti-aircraft defense. On her first day off Okinawa,
Howorth was moving to her station with the
cruiser and destroyer , when she was attacked by eight kamikazes. One made it through the ships' anti-aircraft fire and struck
Howorth in her superstructure, killing seven men and causing a fire that was quickly put out. Following the damage sustained at Okinawa,
Howorth returned to the United States for repairs. She arrived at
Mare Island Naval Shipyard in
California on 2 May 1945. Repairs were completed by early July, and after a brief shakedown cruise in July, she set sail for Pearl Harbor on 15 July. The ship was en route to
Adak,
Alaska on 15 August, when the news of the Japanese surrender reached the ship.
Post-war Howorth arrived in
Yokohama,
Japan on 17 September, where she escorted convoys back from Japan. Her final trip from Japan was on 11 November, and arrived in San Francisco on the 28th of that month. The ship was decommissioned on 30 April 1946, and was placed in the
Pacific Reserve Fleet. She remained in reserve until 8 March 1962 when she was sunk in the Pacific Ocean off
San Clemente Island, California, as a
torpedo target by the submarines and . ==Honors and awards==