ABSTRACT
The winter months mainly have multi northwest wind with low temperatures and less precipitation. Summer months have strong pacific warm subtropical high pressure with principal southerly winds, high temperatures, and precipitation. The average annual temperature of Tianjin is around 12-14°C, in which July is the hottest month. The annual average precipitation is between 360 and 970 mm (1949-2010), and 600 mm is the representative average figure of annual precipitation that many scholars and researchers summarized by multi-information.
