On 12 September, she conducted a 4-hour attack on a Japanese submarine off Guadalcanal, and although debris and an oil slick rose to the surface, she was not credited with a kill.

A heavy oil slick dotted with debris rose to the surface, and the tenacious ship and crew were credited with sinking I-39.

The second of those would-be kamikazes dived on Griswold, but she evaded it and the marauder exploded into the ocean so close that fragments of the Japanese plane showered over her.

On 29 June, Griswold departed Okinawa, escorting a convoy to Leyte Gulf, Philippines, and continuing on to Ulithi for screening work.

Embarking passengers for stateside, Griswold cleared Tokyo 6 days later and arrived San Pedro, Los Angeles on 8 October via Eniwetok and Pearl Harbor.