The 1875 Atlantic hurricane season lasted from mid-summer to late-fall. Records show that 1875 was a relatively inactive hurricane season. There were six storms of which one peaked as a tropical storm, four as hurricanes and one as a major hurricane (Category 3+). However, in the absence of modern satellite and other remote-sensing technologies, only storms that affected populated land areas or encountered ships at sea were recorded, so the actual total could be higher. An undercount bias of zero to six tropical cyclones per year between 1851 and 1885 and zero to four per year between 1886 and 1910 has been estimated. Of the known 1875 cyclones, both Hurricane One and Hurricane Five were first documented in 1995 by Jose Fernandez-Partagas and Henry Diaz. They also proposed large changes to