Hurricane season officially runs from June 1 through November 30 each year. This six-month period marks the time during which tropical or subtropical cyclones are most likely to form in the Atlantic and Pacific basins. However, there is a distinct peak in hurricane activity from August through October, with the highest activity typically occurring in September. About 92% of the hurricane season's activity happens from August until the season ends in November. It is important to be prepared by the start of the season on June 1 because storms can form any time during the season, even before the peak months.