Located in the warm temperate zone, Tianjin has sub-humid continental monsoon climate. As it is influenced by the sea and ocean in summer and by the continent in winter, the four seasons here are clearly cut, which results in a great variety of temperature throughout the year. The average temperature in a year is 11.1℃-12.0℃. The coldest month is January, with an average temperature of less than -4℃; the hottest month is July, with an average temperature of about 26℃. On average, the frost-free period lasts about 200 days. The annual precipitation is between 550 and 680 mm, 75% of which occurs in June, July and August. The sunshine time in the city is relatively long: an average of 1,921.0-2,852.0 hours in a year. The average wind speed throughout the year is 2.5m/s.
