Due to industrial activities and greenhouse gas emissions growth increasingly, the global climate has been imbalanced particularly in recent decades.. This phenomenon is referred to climate change. This system affects the systems involved in human life. The studies that conducted in recent years, have turned it to one of the most important scientific topics. One of the most important factors that has affected by climate change, is temperature and precipitation parameters. This study investigates the effects of climate change on the precipitation and temperature of of Zayandeh-Rud River Basin and estimates the climate white; unicode-bidi: embed; DIRECTION: ltr; TEXT-ALIGN: justify" Keywords: Zayandeh-Rud Basin, Climate change, Temprature, Precipitation, Aridity indices De Martonne, Transeau, Ivanova, Embrege, Selianinova