September has produced the most hurricanes of any month in the historical record, but there are five that led the pack in intensity.
When ranking hurricanes by strength, the obvious choice is to compare wind speeds. But since measurements of the most extreme winds are difficult to obtain, we instead compare hurricanes by their lowest central pressure, a measure that has a strong relationship to wind speed; generally, the lower the pressure in a hurricane, the stronger its winds.
Here are the five most intense September hurricanes on record to roam the Atlantic. Coincidentally, these hurricanes share a common trait: they all affected the United States at a weaker intensity later in their lifespan.