Why is Ya'an called Rain City?

The climate type is subtropical monsoon humid climate, with a large difference between the north and the south. The average annual temperature is between 14.1℃ and 17.9℃, and there is a lot of rainfall. Most counties have more than 1,000 mm of annual rainfall. There are "Rain City" and "Sky Leak". " is called. High humidity and little sunshine.

The climate of Ya'an City belongs to the humid subtropical monsoon climate type. Except for the alpine mountains, there is generally no severe cold in winter and no scorching heat in summer. Spring is warm and dry, and precipitation is concentrated in summer with frequent night rains. However, the climate in the north and south of Daxiangling is significant difference. Take Yucheng District and Hanyuan City District as examples: the former has an average annual temperature of 16.2°C, and the latter has an average annual temperature of 18.0°C. The average temperature in January is 6.1℃ in the former and 8.3℃ in the latter. The average temperature in July is 25.4℃ in the former and 26.0℃ in the latter. The former has 1,005 hours of sunshine, while the latter has 1,451 hours of sunshine. The city's river valley zone has a frost-free period of 280 to 310 days, and the annual precipitation differs significantly between the north and the south. It is mostly between 1250 and 1750 mm in the north, but only 740 and 760 mm in the south. The rainfall in Yucheng District and Tianquan area can reach as much as 2,000 millimeters in some years. It is the rainiest center in Sichuan, so it is called "Rain City".