 In the 1971–2005 period, there were an average of 15–16 tropical storms, 9 hurricanes, and 4–5 major hurricanes (storms of Category 3 intensity or greater) annually in the basin.Storms that form here often affect western Mexico, and less commonly the Continental United States (in particular California), or northern Central America.No hurricane included in the modern database has made landfall in California; however, historical records from 1858 speak of a storm that brought San Diego winds over (marginal hurricane force), though it is not known if the storm actually made landfall.