In mid-September, Hurricane Ione struck eastern North Carolina and contributed the flooding from Connie and Diane, resulting in seven fatalities and $88 million in damage.

Hurricane Katie, the final storm, caused minor damage in a sparsely populated area of Hispaniola, totaling to at least $200,000; 7 fatalities were also reported.

On April 11, 1955, which was prior to the start of the season, Gordon Dunn was promoted to the chief meteorologist of the Miami Hurricane Warning Office.

[1] In early June, the Hurricane Hunters received new reconnaissance aircraft, which contained the latest radar and electronic equipment, at the time.

[4] After the devastating storms of the season, particularly Connie and Diane, a United States Government organization with the purpose of monitoring tropical cyclones was established in 1956 with $500,000 in funding; it later became the modern-day National Hurricane Center.

Tropical storm force winds were reported, peaking at 50 mph (80 km/h) at Shell Beach, Louisiana, on the south shore of Lake Borgne.

[4][7] The outer rainbands produced hurricane-force wind gusts and intense precipitation, reaching 8.65 inches (220 mm) in Puerto Rico.

[7] Despite landfall in North Carolina, impact in the state was minor, limited to moderate rainfall, abnormally high tides, and relatively strong winds.

Flooding in mountainous areas caused landslides and destroyed crop fields; agriculture losses was estimated at $7 million.

[4] Moving towards the west-northwest, the disturbance slowly intensified, reaching tropical storm strength at 1200 UTC on August 23 and as such was named Edith by the Weather Bureau.

[7][27] Afterwards, Edith began to curve towards the northwest as it gradually intensified, attaining hurricane strength on August 26, but weakened back to a tropical storm early the next day.

Edith became a Category 2 hurricane on August 30 and soon peaked with maximum sustained winds of 100 mph (160 km/h) and a minimum pressure of 967 mbar (28.6 inHg).

Although Edith remained at sea,[7] it was suspected that the hurricane may have caused the loss of the pleasure yacht Connemara IV, after it separated from its moorings.

[4] Moving inland, it slowly weakened while crossing the Central United States, degenerating to tropical depression strength by August 28 and dissipating over east-central Texas several hours later.

Although the Panair do Brasil headquarters in Recife, Brazil reported a closed circulation on August 30,[4] Tropical Storm Flora did not develop until 0600 UTC on September 2, while located about 400 miles (640 km) of Cape Verde.

The storm reached Category 4 intensity with maximum sustained winds of 140 mph (230 km/h) and a minimum barometric pressure of 938 mbar (27.7 inHg) early on September 18.

[7] Strong winds, heavy rainfall, and abnormally high tides lashed some areas along the East Coast of the United States, especially North Carolina.

[4] The remnants of Ione brought gusty winds to Atlantic Canada, which broken poles, uprooted trees, interrupted telephone service, damaged chimneys and caused power outages, especially in St. John's, Newfoundland and Labrador.

[4] Although Hilda weakened to a tropical storm over southeastern Cuba, the system re-strengthened into a hurricane as it struck Grand Cayman early on September 15.

[42] Although Hilda quickly weakened to a tropical storm over the Yucatán Peninsula, the cyclone re-strengthened to again reach winds of 120 mph (190 km/h) early on September 19.

[7] The storm is estimated to have generated gusts up to 150 mph (240 km/h) and dropped heavy rainfall that flooded 90% of Tampico, while its strong winds damaged half of the homes,[42] leaving 15,000 homeless.

[47] After weakening to a Category 2 over the Yucatán Peninsula, it moved into the Bay of Campeche and remained mostly unchanged in intensity before making its final landfall near Veracruz on September 29.

[48][49] While Janet was in the central Caribbean Sea, a reconnaissance aircraft flew into the storm and was lost, with all eleven crew members believed perished.

[50] A Category 5 upon landfall on the Yucatán Peninsula, Janet caused severe devastation in areas on Quintana Roo and British Honduras.

At Janet's second landfall near Veracruz, significant river flooding ensued, worsening effects caused by Hurricanes Gladys and Hilda earlier in the month.

It is possible that the system developed into a tropical depression the next day, although lack of data prevented such classification until September 23, when a nearby ship reported winds of 35 mph (56 km/h).

The system moved generally northeast due to the presence of a strong low pressure area along the East Coast of the United States.

Early on October 17, Katie made landfall in extreme eastern Sud-Est, Haiti, as a strong Category 2 hurricane (although it may have been stronger).

[4] While crossing the mountainous terrain of Hispaniola, Katie became very disorganized and rapidly weakened to a tropical storm early on October 17, within a few hours after moving inland.

During that time, the storm re-intensified and briefly approached hurricane intensity, although it failed to strengthen further due to interaction with a cold front.