The main aim of this paper is to identify the changes in vegetable crops productivity of the study subject crops "potatoes, tomatoes and cucumbers" on three seasons in different climatic zones in Egypt. The study showed that there is a difference between average productivity per feddan for the potatoes, tomatoes and cucumbers on summer, winter, nile seasons in different climatic zones in Egypt and years during the period (2000 - 2005). The study found from using F test that there are significant differences of productivity among different climatic zones, which acceptance of the assumption that productivity is affected by climatic factors.