The North Atlantic hurricane season for 2005 began early and was an unusually active season, breaking the previous recorded hurricane season records for the number of named storms, hurricanes, Category 5 hurricanes, major hurricanes making U.S. landfall, early-season storms, and the strongest hurricane in the Atlantic Basin (see Table 1). On average, about six North Atlantic hurricanes occur every year; by the end of 2005, there had been 15. The annual hurricane season, which generally lasts from June 1 through November 30, was longer than average for the 2005 hurricane season with Tropical Storm Zeta (the 27th named storm) persisting until January 2006.