In the SNHT, the null hypothesis (H₀) was homogeneity of the data and the alternative hypothesis (H₁) was heterogeneity of the data. In the MK trend test, the null hypothesis was randomness and absence of any trends in data, and the alternative hypothesis was non-randomness and presence of trends in the data. If the p-value is more than significance level (α), the null hypothesis is confirmed; otherwise, the alternative hypothesis is acceptable. The results in Table 2 show that the data related to monthly precipitation is homogeneous and random at all stations and can be used with confidence. The correlation of monthly precipitation at different stations is important and applicable in modeling. Hence, the correlation between the monthly precipitation at different stations was investigated (Table 3). The synoptic station of Bandar Lengeh was used as the target station.