The 1949 Atlantic hurricane season was the last season that tropical cyclones were not publicly labeled by the United States Weather Bureau. It officially began on June 15, and lasted until November 15. These dates conventionally delimit the period of each year when most tropical cyclones form in the Atlantic basin. The first storm, a tropical depression, developed in the northern Gulf of Mexico on August 14. The final system, Tropical Storm Sixteen, dissipated in the southwestern Caribbean Sea on November 5. It was a fairly active season, featuring 16 tropical storms and seven hurricanes. Two of these strengthened into major hurricanes, which are Category 3 or higher on the Saffir–Simpson hurricane wind scale.
The 1920 Atlantic hurricane season featured tropical storms and hurricanes only in the month of September. The first system, a hurricane, developed on September 7 while the last, a tropical depression, transitioned into an extratropical cyclone on October 27. Of note, four of the six cyclones co-existed with another tropical cyclone during the season.
The 1909 Atlantic hurricane season was an average Atlantic hurricane season. The season produced thirteen tropical cyclones, twelve of which became tropical storms; six became hurricanes, and four of those strengthened into major hurricanes. The season's first storm developed on June 15 while the last storm transitioned into an extratropical cyclone on November 14. The most notable storm during the season formed in late August, while east of the Lesser Antilles. The hurricane devastated the Lesser Antilles, the Greater Antilles, and Mexico, leaving around 4,000 fatalities and more than $50 million (1909 USD) in damage.
The 1908 Atlantic hurricane season was an active Atlantic hurricane season. Thirteen tropical cyclones formed, of which ten became tropical storms; six became hurricanes, and one of those strengthened into a major hurricane – tropical cyclones that reach at least Category 3 on the modern day Saffir–Simpson scale. The season's first system developed on March 6, and the last storm transitioned into an extratropical cyclone on October 23.
The 1907 Atlantic hurricane season was a very inactive hurricane season. Only five tropical storms formed, and none of them reaching hurricane strength. This season is one of only two that did not produce any hurricanes. Of the season's storms, three made landfall, all of them on the Gulf Coast of the United States. The first storm of the season formed on June 24, while the final dissipated on November 12. Damage from the storms was minimal, and no deaths were reported. Due to the lack of modern technology, including satellite imagery, information is often sparse, and four additional systems could have formed during the season. A documentation for four possible storms during the season exists, although it has not been proven that these systems were fully tropical.
The 1906 Atlantic hurricane season was an average season. It featured twelve tropical cyclones, eleven of which became storms, six became hurricanes and three became major hurricanes. The first storm of the season, a tropical storm in the northern Caribbean, formed on June 8; although it struck the United States, no major impacts were recorded. July saw a period of inactivity, with no known storms. However, in August, the streak of inactivity ended with two storms, including a powerful hurricane. September brought three storms, including a deadly hurricane, with catastrophic impacts in Pensacola and Mobile. October included three storms, with a powerful hurricane that killed over 200 people. The final storm of the season impacted Cuba in early November and dissipated on November 9. The season was quite deadly, with at least with 381 total recorded deaths.
The 1905 Atlantic hurricane season featured five known tropical cyclones, two of which made landfall in the United States. The first system was initially observed near the Windward Islands on September 6. The last system to dissipate, the fourth storm, transitioned into an extratropical cyclone on October 11, while located well southeast of Newfoundland. These dates fall within the period with the most tropical cyclone activity in the Atlantic. Between October 5 and October 10, the fourth and fifth system existed simultaneously.
The 1904 Atlantic hurricane season featured no tropical cyclones during the months of July and August. The season's first cyclone was initially observed in the southwestern Caribbean on June 10. After this storm dissipated on June 14, the next was not detected until September 8. The sixth and final system transitioned into an extratropical cyclone offshore South Carolina on November 4. Two of the six tropical cyclones existed simultaneously.
The 1899 Atlantic hurricane season featured the longest-lasting tropical cyclone in the Atlantic basin on record. There were nine tropical storms, of which five became hurricanes. Two of those strengthened into major hurricanes, which are Category 3 or higher on the modern day Saffir–Simpson hurricane wind scale. The first system was initially observed in the northeastern Gulf of Mexico on June 26. The tenth and final system dissipated near Bermuda on November 10. These dates fall within the period with the most tropical cyclone activity in the Atlantic. In post-season analysis, two tropical cyclones that existed in October were added to HURDAT – the official Atlantic hurricane database. At one point during the season, September 3 through the following day, a set of three tropical cyclones existed simultaneously.
The 1897 Atlantic hurricane season was an inactive season, featuring only six known tropical cyclones, four of which made landfall. There were three hurricanes, none of which strengthened into major hurricanes, which are Category 3 or higher on the modern-day Saffir–Simpson hurricane wind scale. The first system was initially observed south of Cape Verde on August 31, an unusually late date. The storm was the strongest of the season, peaking as a Category 2 hurricane with winds of 100 mph (155 km/h). While located well north of the Azores, rough seas by the storm sunk a ship, killing all 45 crewmen. A second storm was first spotted in the Straits of Florida on September 10. It strengthened into a hurricane and tracked northwestward across the Gulf of Mexico, striking Louisiana shortly before dissipating on September 13. This storm caused 29 deaths and $150,000 (1897 USD) in damage.
The 1893 Atlantic hurricane season ran through the summer and the first half of fall in 1893. The 1893 season was fairly active, with 12 tropical storms forming, 10 of which became hurricanes. Of those, five became major hurricanes. This season proved to be a very deadly season, with two different hurricanes each causing over 2,000 deaths in the United States; at the time, the season was the deadliest in U.S. history. The season was one of two seasons on record to see four Atlantic hurricanes active simultaneously, along with the 1998 Atlantic hurricane season. Additionally, August 15, 1893 was the only time since the advent of modern record keeping that three storms have formed on the same day until 2020 saw Wilfred, Alpha, and Beta forming on the same day; and for the first time, there were two high-intensity hurricanes simultaneously in one month of August, and this was not repeated until the year 2023.
The 1889 Atlantic hurricane season ran through the summer and the first half of fall in 1889. In the 1889 Atlantic season there were nine tropical storms and six hurricanes. However, due to scarce technology and the fact that only storms that affected populated land or ships were recorded, the actual total could be higher.
The 1888 Atlantic hurricane season ran through the summer and the first half of fall in 1888. In the 1888 Atlantic season there were two tropical storms, four hurricanes, and two major hurricanes. However, in the absence of modern satellite and other remote-sensing technologies, only storms that affected populated land areas or encountered ships at sea are known, 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.
The 1886 Atlantic hurricane season ran through the early summer and the first half of fall in 1886. This is the period of each year when most tropical cyclones form in the Atlantic basin. It was a very active year, with ten hurricanes, six of which struck the United States, an event that would not occur again until 1985 and 2020. Four hurricanes became major hurricanes. However, in the absence of modern satellites and other remote-sensing technologies, only storms that affected populated land areas or encountered ships at sea are known, 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 1886 cyclones, Hurricane Seven and Tropical Storm Eleven were first documented in 1996 by Jose Fernandez-Partagas and Henry Diaz. They also proposed large alterations to the known tracks of several other 1886 storms.
The 1882 Atlantic hurricane season ran through the summer and early fall of 1882. This is the period of each year when most tropical cyclones form in the Atlantic basin. In the 1882 Atlantic season there were two tropical storms, two Category 1 hurricanes, and two major hurricanes. 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 1882 cyclones, Hurricane One and Hurricane Five were both first documented in 1996 by Jose Fernandez-Partagas and Henry Diaz, while Tropical Storm Three was first recognised in 1997. Partagas and Diaz also proposed large changes to the known track of Hurricane Two while further re-analysis, in 2000, led to the peak strengths of both Hurricane Two and Hurricane Six being increased. In 2011 the third storm of the year was downgraded from a hurricane to a tropical storm.
The 1879 Atlantic hurricane season ran from the summer to near the end of autumn in 1879. In 1879 there were two tropical storms, four hurricanes, and two major hurricanes. 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 1879 cyclones, Hurricane One were first documented in 1995 by Jose Fernandez-Partagas and Henry Diaz. They also proposed large changes to the known tracks of Hurricanes Two, Three, Seven and Eight. Later one storm was deemed not to be a tropical cyclone at all and was dropped from the database.
The 1877 Atlantic hurricane season lasted from mid-summer to late-fall. Records show that in 1877 there were eight cyclones, of which five were tropical storms and three were hurricanes, one of which became a major hurricane. 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.
The 1875 Atlantic hurricane season featured three landfalling tropical cyclones. 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 has been estimated. There were five recorded hurricanes and one major hurricane – Category 3 or higher on the modern-day Saffir–Simpson scale.
The 1874 Atlantic hurricane season was a relatively inactive one, in which seven tropical cyclones developed. Four storms intensified into hurricanes, but none attained major hurricane status. 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.
The 1858 Atlantic hurricane season was one of only three Atlantic hurricane seasons on record in which every tropical cyclone intensified into a hurricane. The first hurricane was first observed over the northwestern Caribbean Sea on June 12. The sixth and final storm was last noted on October 26. These dates fall within the period with the most tropical cyclone activity in the Atlantic. Three tropical cyclones during the season existed simultaneously. Two of the cyclones have only a single known point in its track due to a sparsity of data. Operationally, another tropical cyclone was believed to have existed over the eastern Atlantic between September 17 and September 18, but HURDAT – the official Atlantic hurricane database – excludes this system. However, in the absence of modern satellite and other remote-sensing technologies, only cyclones that affected populated land areas or encountered ships at sea are currently known, so the actual total could be higher. An undercount bias of zero to four tropical cyclones per year between 1886 and 1910 has been estimated. Of the six known 1858 Atlantic cyclones, five were first documented in 1995 by Jose Fernandez-Partagas and Henry Diaz.
