These dates, adopted by convention, historically describe the period in each year when most subtropical or tropical cyclogenesis occurs in the Atlantic Ocean.

Fiona brought heavy flooding, significant damage, and loss of life along its path from the Lesser Antilles to Eastern Canada.

Ian made landfall in Western Cuba and in Florida, where it hit at Category 4 strength, causing massive storm surge and flooding, along with widespread destruction.

[7][8] This timeline documents tropical cyclone formations, strengthening, weakening, landfalls, extratropical transitions, and dissipations during the season.

Additionally, figures for maximum sustained winds and position estimates are rounded to the nearest 5 units (knots, miles, or kilometers), following National Hurricane Center practice.