The importance of the drought have been calculated for the city of Baghdad using percent of normalmethod (PN), a method used for the first time in Iraq, despite its importance in giving an idea of the drought Monthly and seasonal one area. It found in the study period, where a thirty rainy season the half seasons,was a dry varies from moderate drought and severe.The general trend of rainfall in the case of diminishing that is meanincreases in dry seasons that recorded at nineteen decade across seven seasons dry.