The results of CFO analyses of mesoscale climate in the Tokyo area are presented . Here, the urban climate in the Tokyo area is analyzed with various land-use conditions in order to examine their effects on velocity and temperature fields. Furthermore, climatic change from the end of the Japanese Medieval Period (Tempo period in the Tokugawa Dynasty: 1830-1844) to the present is also analyzed. By comparing the results of these analyses, We effects of urbanization on the local climate in the Tokyo area are investigated.