The knowledge of drought monitoring, pomegranate evapotranspiration, water balance study is necessary to generate best plan for maximum production of pomegranate. In addition to this, it is important for the decision makers and planners if the values of crop evapotranspiration (ETc) are known at certain probability levels. Further, the evapotranspiration prediction guarantees a reliable project planning, design and operation irrigation systems. ETr takes care of variation in climate and kc is dependent on crop and its growth stages. In addition to this, it is important for the decision makers and planners if the values of ETc at certain probability levels are known. The reference crop evapotranspiration values were estimated by Penman-Monteith daily records of meteorological parameters. The abrupt changes, large variation from mean values of meteorological parameters are observed in Ambe and Mrig bahars. In case of Hasta bahar uniform variation of all parameter observed which will helpful for healthy and disease free growth of pomegranate tree and its maximum production. Hence forth Hasta bahar is best for maximum pomegranate production.