While performing research on an altogether different topic, I couldn't help but notice how active and deadly the year of 1893 was.
1893

On August 22, 1893, four hurricanes were occurring simultaneously. Storm #3 approaching Nova Scotia, Canada, storm #4 between Bermuda and the Bahamas, storm #6 northeast of the Lesser Antilles and storm #7 west of the Cape Verde Islands. Storm #4 would end up making a direct hit on New York City as a Category 1 hurricane two days later and storm #6 ending up hitting Georgia and South Carolina as a Category 3 hurricane (the "Sea Islands Hurricane") and killing 1,000-2,000 people. The only other known date with four hurricanes occurring at the same time was September 25, 1998, when hurricanes Georges, Ivan, Jeanne and Karl were in existence.

Sea Islands Hurricane

1893 also had the "Chenier Caminanda Hurricane" that struck Louisiana in and killed about 2,000 people was assigned a Category 4 at landfall.

Chenier Caminada

Interestingly enough, the US had seven landfalls that year, but not one in Florida, although two were probably a little too close for comfort, making sharp northward turns very close to the coast:

wunderground1893

unisys1893

I believe the "Sea Islands Hurricane" and the "Chenier Caminanda Hurricane" rank 2 and 3 as the deadliest hurricanes to hit the US.

The information I've been gathering has been spotty. If anyone knows of a good link (or links) describing the 1893 season, by all means, post them.

Cheers,

LI Phil