Why is the weather wet in Chengdu?

Chengdu has a subtropical monsoon climate, with early spring, hot summer, cool autumn and warm winter. The annual average temperature is 16℃, and the annual rainfall is about 1000 mm. A remarkable feature of Chengdu's climate is cloudy and short sunshine time.

The folk proverb "Shu dog barks at the sun" is an image description of this climate feature. Another notable feature of Chengdu's climate is humid air. Therefore, although the temperature is not high in summer (the highest temperature generally does not exceed 35℃), it looks sultry. In winter, the average temperature is above 5℃, but it is very cold because of cloudy days and humid air. The rain in Chengdu is concentrated in July and August, and there is less rain and less ice and snow in winter and spring.

Extended data:

Season:

Spring: The temperature rises earlier, which is beneficial to the growth of trees and spring crops, but it is prone to persistent low temperature or "late spring cold", which affects the timely sowing of crops in Da Chun or causes rotten seeds and seedlings.

Summer: Hot and rainy summer and strong sunshine are the golden seasons for crop growth in Da Chun. However, frequent heavy precipitation weather is easy to cause waterlogging. At the same time, high temperature and high humidity are conducive to the occurrence and development of various pests and diseases.

Baidu Encyclopedia-Chengdu