List of Arizona hurricanes
It is extremely difficult for a hurricane to form in Arizona because the normal storms that form in the eastern Pacific Ocean move either parallel or away from the Pacific coast of Northwestern Mexico. As a result, most storms that could affect Arizona, are carried away from the United States, and only 6% of all Pacific hurricanes enter US territory. In average, Arizona experiences the effects of tropical cyclones once every five years. Many, but not all, of these systems also affected California.