摘要：:Climatic change is always one of the most important topics in the world and it has significant impacts on ecological and hydrological processes. Understanding of rainfall variability helps in proper planning of agriculture and decision management. In this present study, seasonal forecasting models namely Box Jenkins and Winters additive models were used for the period of 1988 to 2012 in Krishna district and finally, regarding the comparison of error between models, Seasonal ARIMA approach was chosen as the most appropriate method for forecasting and then the monthly rainfall forecast from 2013-2015 years have been investigated by selected ARIMA (1,0,0)(1,1,2)s.
