Current Table

Top 10 Costliest Global Severe Convective Storms by Insured Losses, 1900-2020 (1)

(2020 US$ billions)

        Insured loss
Rank Date Country/region Event Dollars when
occurred
In 2020
dollars (2)
1 Apr. 2011 U.S. 2011 Super Outbreak $7.3 $8.4
2 Aug. 2020 U.S. Severe convective storm (includes Midwest Derecho) 8.3 8.3
3 May 2011 U.S. Joplin Tornado/Severe convective storm 6.9 7.9
4 May 2003 U.S. Severe convective storm 3.2 4.5
5 Jul. 2013 Europe Storm Andreas 3.8 4.2
6 May 2019 U.S. Severe convective storm 3.7 3.7
7 Apr. 2016 U.S. San Antonio Hailstorm 3.2 3.5
8 Jun. 2014 Europe Storm Ela 3.1 3.4
9 Apr. 2001 U.S. St . Louis Hailstorm 2.2 3.2
10 May 2014 U.S. Severe convective storm 3.0 3.2

(1) Includes severe convective storms such as thunderstorms, tornadoes and hailstorms, straight-line winds and flooding that could occur with these storms. Includes losses sustained by private insurers and government-sponsored programs. Subject to change as loss estimates are further developed. As of January 2021.
(2) Adjusted for inflation by Aon using the U.S. consumer price index.

Note: Loss data shown here may differ from figures shown elsewhere for the same event due to differences in the date of publication, the geographical area covered and other criteria used by organizations collecting the data.

Source: Aon.