Statistical modelling of rainfall data using modified Weibull distribution

This article presents the aspects of modeling rainfall data using a modified version weibull distribution. model takes care those days reported with zero corresponding to dry (i.e., no rain day) during season (in life testing context this situation is called instantaneous failures). We propose distribution as suitable represent such situations by mixture singular at and two parameter derive Maximum Likelihood Estimates (MLE) parameters their joint asymptotic distributions well that mean rainfall. Based on above results 95% confidence interval for obtained. The method illustrated actual measured from stations namely, Jalgaon Coimbatore divisions in India 10 year period 1961 1970. Correspond each year, estimates parameters, average intervals are provided.