The 1903 Atlantic hurricane season featured seven hurricanes, the most in a season since 1893. The first tropical cyclone was initially observed in the western Atlantic Ocean near Puerto Rico on July 21. The tenth and final system transitioned into an extratropical cyclone well northwest of the Azores on November 25. These dates fall within the period with the most tropical cyclone activity in the Atlantic. Six of the ten tropical cyclones existed simultaneously. Of the season's ten tropical storms, seven of those strengthened into a hurricane. One of the seven hurricanes deepened further into a major hurricane, which are tropical cyclones that reach at least Category 3 on the modern day Saffir–Simpson hurricane wind scale. The second, third, and fourth systems left the most significant impacts during this season. The second storm, which struck Jamaica in August, devastated Martinique, Jamaica, and the Cayman Islands. At least 149 deaths were attributed to this storm, while it also caused $10 million (1903 USD) in damage in Jamaica alone. The third cyclone made landfall in Florida twice in mid-August, leaving 14 fatalities and about $500,000 in damage. Only a few days later, the fourth cyclone struck New Jersey. The storm impacted many areas in the Mid-Atlantic region of the United States and caused 57 deaths and about $8 million in damage. Additionally, the remnants of the eighth tropical cyclone caused severe flooding in the Mid-Atlantic. The Atlantic hurricane reanalysis project also indicated but could not confirm the presence of four additional tropical depressions throughout the season. However, the reanalysis added a previously undetected tropical storm in late October to the Atlantic hurricane database (HURDAT). Reanalysis also resulted in the eighth cyclone being downgraded from a hurricane to a tropical storm. Season summary Tropical cyclogenesis began with the development of the first system on July 21 in the western Atlantic near Puerto Rico. This was the only storm in the month of July. Likewise, August also featured one storm. The second system was the most intense tropical cyclone of the season, peaking as a Category 3 hurricane with maximum sustained winds of and a minimum barometric pressure of . This was also the first major hurricane in the Atlantic basin since the second storm of 1900 and the first in the Caribbean since the 1899 San Ciriaco hurricane. September was the most active month of the season, with four systems developing, three of