Hurricane Alma was a rare (and most recent) June major hurricane in the 1966 Atlantic hurricane season. It was the earliest Atlantic hurricane in the calendar year in fifteen years, as well as the earliest continental U.S. hurricane strike since 1825. Alma developed on June 4 over Central America, and while moving through Honduras, it dropped heavy rainfall that killed at least 75 people in the city of San Rafael. Offshore northern Honduras, the system produced heavy rainfall in Swan Island. Alma moved northeastward and intensified into a hurricane on June 6. It crossed western Cuba, causing heavy crop damage and water shortages. Alma destroyed over 1,000 houses, and damage was estimated around $200 million (1966 USD). The storm killed 12 people in the country.