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A Shore Acres family evacuates during flooding caused by Hurricane Agnes in June 1972 in St. Petersburg. The storm swept up the coast of Florida. (Tom Bennett / Newscom / File)
9. Agnes (1972) – $10.9 billion
The only June storm to make the Top 10, hurricane Agnes made landfall as a Category 1 storm on the Florida Panhandle, marched across the south to Atlanta and the sea, pushed up the coast and made landfall a second time near New York City (by then only a tropical storm), and faded out over Pennsylvania and New York State. Agnes left a swath of property destruction and was linked to 129 fatalities, according to Weather Underground's Hurricane Archive.
