Complex sentence: The United States had an early start, though, with Abby, Brenda, and Candy hitting in June; hurricanes Abby and Gladys are credited with helping to break a drought in the southeastern United States.
Split into simpler sentences: The United States had an early start, though, with Abby, Brenda, and Candy hitting in June. Hurricanes Abby and Gladys are credited with helping to break a drought in the southeastern United States.