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India stands as an agrarian nation where larger part of the economy dependents upon crop profitability and rainfall. Rainfall forecast helps a significant part in avoiding genuine catastrophic events and helps protect the economy. Few sectors in the Indian economy are monetarily reliant on rainfall because farming is a major revenue generator in those numerous states. The board of water in India assists with recognizing crops designs and rights to help in harvests. To forecast rainfall, we utilize non-straight models for their accurate rainfall expectation. For investigating the yield profitability, rainfall forecast is need and important to all ranchers. Rainfall Prediction is the utilization of skill and innovation to antedate the condition of an environment. It is life-threatening to precisely decide rainfall for successful utilization of water assets, crop profitability and pre arranging of water assets. Utilizing various data mining techniques, it can anticipate rainfall. Data mining models are utilized to gauge the rainfall numerically. It concentrates a portion of well-known data digging calculations for rainfall prediction. Credulous Bayes, K-Nearest Neighbor calculation, Decision Tree, Neural Network and fluffy rationale are portion of the calculations looked at right now. From that correlation, it can examine the technique which gives enhanced exactness for rainfall prediction.