U.S. Saw Its 4th-Hottest Year On Record, Fueled By Record-Warm December
that killed at least 688 people — the most disaster-related fatalities for the contiguous U.S. since 2011 and more than double last year’s number of 262. The following 20 events, each exceeding $1 billion, put 2021 in second place for the highest number of disasters recorded in a calendar year, behind the record 22 separate billion-dollar events in 2020:2 flood events .Damages from these disasters totaled approximately $145 billion for all 20 events.
Hurricane Ida was the most costly event of 2021 at $75 billion and ranks among the top-five most costly hurricanes on record for the U.S. The combined cost of the four tropical systems was approximately $78.5 billion, more than 54% of the total U.S. billion-dollar disaster price tag in 2021. The historic mid-February winter storm/cold wave was the costliest winter storm on record , more than double the previous record winter storm event — the Storm of the Century in March 1993.
The total cost over the last five years of these disasters exceeds $742 billion — averaging $148 billion a year. These five-year and annual average costs both set record highs.During 2021, 21formed in the North Atlantic Basin. This was the third most active Atlantic hurricane season on record. Category 4 Hurricane Sam was the most intense Atlantic hurricane of the season, while Category 4 Hurricane Ida was the strongest landfalling and most destructive hurricane of the season.
The most notable events during the year were two outbreaks on March 17 and March 25 across the South, with a combined total of about 100 tornadoes, including an EF-4 tornado, an outbreak in Iowa on July 14, the December 10-11 Mid-Mississippi River Valley Tornado event that spawned two EF-4 tornadoes and the December 15 Midwest derecho event that produced more than 60 tornadoes across Nebraska and Iowa.
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