All seasons · Atlantic
1955 Atlantic hurricane season
The 1955 Atlantic season has 13 storms in the best-track record; 13 reached tropical-storm strength and 9 became hurricanes, 4 of them major. Its accumulated cyclone energy of 158.2 is the 22nd-highest of the 175 seasons in the Atlantic record since 1851. Janet was the strongest, peaking at 175 mph as a Category 5 hurricane. Landfall records exist for 9 of its storms, in the Cayman Islands, Cuba, the Dominican Republic, Honduras, Louisiana, North Carolina, Quintana Roo, Saint Vincent and the Grenadines, Tamaulipas and Veracruz. The first record is dated July 31, the last October 19.
Storm by storm
More storms formed in September than in any other month of 1955: 6 of 13. Diane lasted longest, 13.5 days as a tropical or subtropical system. Connie contributed the most energy, 20% of the season's ACE. Strongest landfall of each storm: Brenda reached Louisiana as a tropical storm on August 1; Connie reached North Carolina as a Category 2 hurricane on August 12; Diane reached North Carolina as a tropical storm on August 17; Storm 5 of 1955 reached Louisiana as a tropical storm on August 27; Gladys reached Tamaulipas as a Category 1 hurricane on September 5; Ione reached North Carolina as a Category 2 hurricane on September 19; Hilda reached Veracruz as a Category 3 hurricane on September 19; Janet reached Quintana Roo as a Category 5 hurricane on September 28; and others in the table below.
| Storm | Dates | Peak | Strength | Lowest | Landfalls |
|---|---|---|---|---|---|
| Brenda | Jul 31 – Aug 3 | 70 mph | Tropical storm | – | Louisiana |
| Connie | Aug 3–15 | 140 mph | Category 4 | 944 mb | North Carolina |
| Diane | Aug 7–20 | 105 mph | Category 2 | 969 mb | North Carolina |
| Edith | Aug 21–31 | 100 mph | Category 2 | 967 mb | – |
| Storm 5 of 1955 | Aug 25–28 | 50 mph | Tropical storm | 1004 mb | Louisiana |
| Flora | Sep 2–9 | 105 mph | Category 2 | 967 mb | – |
| Gladys | Sep 3–6 | 75 mph | Category 1 | 996 mb | Tamaulipas |
| Ione | Sep 10–21 | 140 mph | Category 4 | 938 mb | North Carolina |
| Hilda | Sep 12–20 | 120 mph | Category 3 | 952 mb | Cuba, Cayman Islands, Quintana Roo, Veracruz |
| Janet | Sep 21–30 | 175 mph | Category 5 | 914 mb | Saint Vincent and the Grenadines, Honduras, Quintana Roo, Veracruz |
| Storm 11 of 1955 | Sep 23–27 | 45 mph | Tropical storm | – | – |
| Storm 12 of 1955 | Oct 10–14 | 65 mph | Tropical storm | – | – |
| Katie | Oct 14–19 | 110 mph | Category 2 | 984 mb | Dominican Republic |
Against other Atlantic seasons
Accumulated cyclone energy of every season; the red bar is 1955.