Billion-Dollar Weather and Climate Disasters: Summary Stats

The distribution of damage from U.S. Billion-dollar disaster events from 1980 to present (as of October 6, 2017) is dominated by tropical cyclone losses. Tropical cyclones have caused the most damage ($583.5 billion, CPI-adjusted) and also have the highest average event cost ($16.7 billion per event, CPI-adjusted). This average hurricane cost and the summary stats (below) do not yet include costs for Hurricanes Harvey, Irma and Maria, which are being assessed and will be included in our 4th quarter release. Drought ($235.3 billion, CPI-adjusted), severe storms ($201.6 billion, CPI-adjusted) and inland flooding ($119.3 billion, CPI-adjusted) have also caused considerable damage based on the list of billion-dollar events. Severe storms have caused the highest number of billion-dollar disaster events (90), while the average event cost is the lowest ($2.2 billion, CPI-adjusted). Tropical cyclones and flooding represent the second and third most frequent event types (38 and 28), respectively. Tropical cyclones are responsible for the highest number of deaths (3,427), followed by drought/heatwave events (2,993) and severe storms (1,578).

Citing this information:

NOAA National Centers for Environmental Information (NCEI) U.S. Billion-Dollar Weather and Climate Disasters (2017).