Understanding the Start of Hurricane Season: A Guide for U.S. Residents

Hurricane season in the Atlantic Ocean officially begins on June 1 and ends on November 30 each year. This period is designated as the time when most tropical cyclones form in the Atlantic basin. (cdc.gov)

Why Does Hurricane Season Start on June 1?

The June 1 start date was established to encompass the majority of Atlantic tropical cyclone activity, which occurs over 97% of the time during this period. Historically, the U.S. Weather Bureau operated with radar technology to observe hurricanes from June 15 through November 15, but in 1964, the season was extended to begin on June 1 and end on November 30. (aoml.noaa.gov)

What Happens Before June 1?

While the official hurricane season starts on June 1, hurricanes can and have occurred outside of this time frame. For instance, the 2025 Atlantic hurricane season began on June 1, but the first storm, Tropical Storm Andrea, formed on June 23, marking the latest start to an Atlantic hurricane season since 2014. (en.wikipedia.org)

How to Prepare for Hurricane Season

It's crucial to prepare ahead of the hurricane season each year. Before the season starts, ensure you and your family have a plan in place and an emergency kit ready. Familiarize yourself with resources like Ready.gov and the Center for Disease Control’s hurricane guide to stay informed and safe. (mycg.uscg.mil)

Understanding the start of hurricane season and preparing in advance can significantly enhance your safety and resilience during potential storms.