Title Development of Precipitation Forecast Model Based on Artificial Intelligence and Subseasonal Clustering Type of Research Article Keywords Subseasonal precipitation; Forecast; Hybrid model; Artificial neural network (ANN); Clustering analysis. Abstract Subseasonal precipitation; Forecast; Hybrid model; Artificial neural network (ANN); Clustering analysis. Researchers Laleh Parviz (First Researcher)، Kabir Rasouli (Second Researcher)