Ranking of rainfall
(7-yr increment) 
Mean rainfall anomaly
(s.d)
Intense hurricane day U.S. East Coast 
percent of total damage 
U.S. Gulf Coast 
percent of
total damage
1-7 (wettest) +.85 12.5 55 27
8-14 +4.3 9.25 29 8
15-21 +0.4 4.93 8 17
22-28 -.26 3.86 7 38
29-35 -.42 3.18 1 2
36-42 (driest) -.64 0.50 0 8
Total 100% 100%

Table 4. Comparison of normalized (1990) average U.S. hurricane-destruction values for the same West African early season rainfall stratification as in Fig. 5. Column 2 shows the mean West African rainfall anomaly for each 7-yr period, expressed as standardized deviations.