The strong positive IOD occuring in the years 1982 and 1987 is in contrast correlation with the first four modes of rainfall. In addition, the strong negative IOD in the year 1980 is in contrast correlation with the first four modes of monthly mean rainfall anomalies such that temperatures are less, rainfall is higher. Next, the result of the first four modes of monthly mean rainfall anomalies from 1989 to 1998 represent the contrast correlation between DMI in the years 1991, 1994, and 1997, which is the near of a strong positive IOD, such that as high