In 2011, there were 12 natural disasters in the United States that caused damage costing more than $1 billion to clean up. The costliest event was in April, when a series of tornadoes swept through the Southern United States. That disaster alone caused $10.2 billion worth of damages …
From CNN.com:
The United States had a record 12 weather andclimate disasters that caused at least $1 billion in damages in 2011,and that number could increase as other assessments wrap up, theNational Oceanic and Atmospheric Administration said Wednesday.
The country’s old record for weather and climate disasters costing at least $1 billion was nine, set in 2008.
The year’s costliest disaster so far is the April 25-28 tornado outbreak that killed 321 people in central and Southern states, includingAlabama, where the Tuscaloosa, Birmingham and Huntsville areas were hard hit. Losses in that outbreak have totaled $10.2 billion, according toNOAA.