The 1985 Atlantic hurricane season featured eight landfalling tropical cyclones in the United States, including a record-tying six hurricanes, the most in a single year since 1916. The season officially started on June 1 and lasted until November 30. These dates typically cover the period of each year when most tropical cyclones form in the Atlantic basin. The season's first storm, Tropical Storm Ana, developed on July 15; the season's final storm, Tropical Depression Thirteen, dissipated on December 9.
The year featured average activity overall, with thirteen tropical cyclones, eleven tropical storms, seven hurricanes, and three major hurricanes. The 1985 season was particularly destructive and disruptive for the United States, with damage amounting to a then-record US$4 billion. The entire coastline from Brownsville, Texas, to Eastport, Maine, was under a gale warning at some point during the year and a portion of every state was under a hurricane warning.
For convenience, all information is listed by Coordinated Universal Time (UTC) first with the respective local time included in parentheses. This timeline includes information that was not operationally released, meaning that data from post-storm reviews by the National Hurricane Center is included. This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season.