Abstract: India, the seventh largest country in the world situated between latitudes 8° 4’ and 37° 6’ longitudes 68° 7’ and 97° 25’. The present study is based on secondary sources of time series data obtained 15 years 1996-99 to 2010-11. The total, actual & normal rainfall, rice & wheat yield and area were data analysis of continuous 15 years (1996-99 to 2010-11). It was found 15 years R2 value 0.13 (13%). The mean standard deviation of all the study period was 101.1mm. Moreover, the coefficient of variation CV =0.09 of data. The developed model explained rainfall 13% and rice yield 64% of the variability in rainfall and rice yield. The analysis of rice yield with rainfall CV=0.07 was observed and coefficient of correlation between rainfall and yield was 0.09. The rice yield and rainfall was shown good correlation. Although wheat is grown during non-monsoon months, its production shows a rather weak but significant correlation with monsoon rainfall is 0.09 for rice but negative for wheat is -0.26.