($ millions)

Date Catastrophes States Estimated insured loss (1)
First quarter      
     Jan. 4-9 Wind, hail, tornadoes, flooding, freezing, ice, snow AR, CA, IL, IN, KS, MI, MO, NY, OH, OK, OR, WA, WI (2) $745
     Feb. 5-6 Wind, hail, tornadoes AL, AR, IN, KY, MS, OH, TN, TX (2) 955
     Mar. 15-16 Wind, hail, tornadoes GA, SC 560
     Total first quarter losses     3,545 (3)
Second quarter      
     May 22-26 Tornadoes, storms CO, IA, KS, MN, NE, OK, WY 1,325
    Total second quarter losses     7,110 (4)
Third quarter      
     Jul. 23 Hurricane Dolly TX 525
     Aug. 18-25 Tropical Storm Fay AL, FL, GA 245
     Sep. 1 Hurricane Gustav LA 2,150
     Sep. 6 Tropical Storm Hanna NC, VA 80
     Sep. 12-14 Hurricane Ike AR, IL, IN, KY, LA, MO, OH, PA, TX 12,500
     Total third quarter losses     16,115 (5)
Fourth quarter      
     Dec. 11-13 Flooding, ice, snow, wind MA, ME, NH, NY, UT 275
     Total fourth quarter losses     275 (6)
Total losses (full year)     $27,045
(1) Does not include flood damage covered by the federally administered National Flood Insurance Program.
(2) Possibly other areas.
(3) Includes nine events.
(4) Includes 16 events.
(5) Includes 11 events.
(6) Includes one event.

Note: Catastrophes are assigned serial numbers by the Property Claim Services unit (PCS) of ISO when the insured loss to the industry resulting from an occurrence reaches at least $25 million and affects a significant number of policyholders and insurers. 

Source: ISO's Property Claim Services unit (PCS).