Which U.S. landfalling hurricane holds the record for the lowest barometric pressure?

The 1935 Labor Day hurricane holds the record for the lowest barometric pressure measured in a U.S.-landfalling hurricane. When the Category 5 storm struck the Florida Keys near Long Key on September 2, 1935, a barometer on Craig Key recorded a central pressure of 892 millibars. That extraordinarily low reading remains the benchmark for a hurricane making landfall in the United States.

The storm intensified explosively as it crossed the Bahamas and approached the Keys. It was compact, fast-moving, and extremely powerful, with modern reanalysis estimating landfall winds near 185 mph. Its small eye and intense pressure gradient produced devastating winds and storm surge across the island chain. The hurricane later made another Florida landfall near Cedar Key before weakening over the Southeast.

The record is specifically about central pressure at U.S. landfall, not the lowest pressure ever observed in the Atlantic basin. Hurricane Wilma holds the basin-wide pressure record, while storms such as Camille and Michael are often mentioned in comparisons of exceptionally intense U.S. landfalls. Pressure, wind speed, storm size, and surge measure different aspects of hurricane intensity, so they do not always produce the same record-holder.