Hurricane Dora
Around 12:20 a.m. EST on September 10, Hurricane Dora made landfall about north of St. Augustine, Florida, with sustained winds between 115 and 125 mph (185 and 205 km/h). Although estimated to have been a Category 3 at landfall, the highest winds onshore were believed to have been in the Category 2 range. Striking northeastern Florida, Dora became the first tropical cyclone on record to make landfall in the region. Once onshore the storm gradually weakened, losing hurricane status about 24 hours later, and began a gradual turn towards the northeast. During the morning of September 12, Dora became almost stationary over the southern border between Alabama and Georgia. However, the storm rapidly accelerated and re-emerged into the Atlantic Ocean on September 14 near the Outer Banks of North Carolina. Hours after moving over water, the system transitioned into an extratropical cyclone. The remnants of Dora were last mentioned on September 16 off the northeast coast of Newfoundland.
1958 Atlantic hurricane season
For much of its duration, Hurricane Daisy was visible from radar along the eastern United States, which assisted in tracking the storm. Passing east of Hatteras, Daisy dropped moderate rainfall, peaking at near Morehead City, North Carolina, before turning to the northeast on August 29. The Weather Bureau issued a hurricane warning from Block Island to Provincetown, Massachusetts due to the projected path near New England. Later on August 29, Daisy passed about southeast of Nantucket. Nearby Block Island reported peak gusts of , and a Texas Tower east of Cape Cod reported gusts to . The storm also produced high tides and light rainfall, and forced 600 people to evacuate Nantucket. Due to its small size, there was no major damage in the United States. After affecting Nantucket, Daisy weakened and became extratropical by early on August 30. The remnants turned to the east, passing south of Nova Scotia before dissipating on August 31. In Canada, the storm damaged a boat in the Bay of Fundy that drifted for two days until reaching Saint John, New Brunswick.
A tropical wave spawned a tropical depression near the Lesser Antilles on August 30, which quickly became Tropical Storm Ella. It quickly intensified in the eastern Caribbean into a hurricane by August 31 while passing south of Puerto Rico; there, the outer rainbands caused some flooding that caused minor damage. On September 1, Ella strengthened to winds of , as measured by the Hurricane Hunters. At that intensity, the hurricane passed just south of the Dominican Republic before making landfall in southwestern Haiti. In the Dominican Republic, heavy rainfall and floods caused $100,000 in damage, mostly in the country's southwestern portion. Heavy rainfall caused widespread flooding in southwestern Haiti, and thousands of people became homeless after their houses were damaged. Near Les Cayes, 30 people were killed due to flash flooding.