The second costliest tornado also occurred in St. Louis in September 1927.
Total dollar cost was put at $100 million making it, at the time, one of the most costly tornadoes in American history.
In terms of damage, it was the most costly tornado in American history to that date, with damage estimates between $250 million and $500 million.
Though only one person was killed, it was one of the most costly urban tornadoes on record in the U.S.
It was also the second costliest tornado in history at the time, but has been surpassed by several others non-normalized.
In terms of damage, it was the costliest tornado in American history to that date, with insurance costs estimated at up to $1.1 billion (in 1975).
Damage from the tornado amounted to $1.25 billion, making this one of the costliest tornadoes in U.S. history.
Besides its enormous size and unusual geographic location, at the time it was the nation's costliest tornado in raw dollars.
The total cost of damage has been put at £40 million, making it the most costly tornado in British history.
It also ranks as the costliest single tornado in U.S. history.