What are the characteristics of subtropical climate?

Features: It is warm in winter and hot in summer, with four distinct seasons, abundant precipitation and even seasonal distribution.

There are two types of subtropical climate:

The east coast of the mainland has a subtropical monsoon climate: hot and rainy in summer and mild and rainy in winter;

The west coast of the mainland belongs to the Mediterranean climate: hot and dry in summer and mild and rainy in winter.

Subtropical areas are rich in heat resources, with annual average temperature 13℃~ 20℃ and accumulated temperature ≥ 10℃4000℃~ 6500℃. The monthly average temperature in 65438+ 10 is above 0℃, 0℃~2℃ in the north of the Yangtze River, 2℃~ 10℃ in the south of the Yangtze River and10℃ in Nanling area.

Due to the low temperature in winter, the subtropical latitude of China is south, and its northern boundary is 4~5 latitudes south of the theoretical boundary. Compared with the Mediterranean region, it is 10~ 1 1 latitude to the south.

However, subtropical areas in China, especially central China, are generally hot in summer, with the average temperature in July around 28℃ and some areas exceeding 29℃. High temperature weather above 35℃ often occurs from May to September.

Extended data:

The average annual precipitation in this area is generally 800 mm~ 1600 mm, which is 1~2 times more than that in North China and richer than that in Southwest China. The distribution of precipitation decreases from southeast to northwest. The annual precipitation in hilly areas of Zhejiang Province is 1200mm ~ 180mm, that in Nanling mountain area and hilly areas of the south of the Yangtze River is about 1500 mm, and that in the middle and lower reaches of the Yangtze River is about1200mm.

The influence of topography on precipitation is also remarkable. Generally, there are more mountains than flat land, and there are more windward slopes than leeward slopes. For example, Tunxi in Anhui is very close to Huangshan, and the precipitation in Huangshan is 700 mm more than that in Tunxi (Tunxi 1507.8 mm, Huangshan is 2263.9 mm). The annual precipitation of Luoxiao Mountain and Xuefeng Mountain can exceed 1800 mm.

Summer rain is the most, followed by spring rain, autumn rain is worse, and winter rain is the least, but winter rainfall can also account for more than 10% of the annual precipitation. The middle and lower reaches of the Yangtze River are areas with high proportion of winter rain and abundant spring rain in China. This seasonal distribution of precipitation is closely related to the geographical location of the middle and lower reaches of the Yangtze River and the atmospheric circulation process.

Baidu Encyclopedia-Subtropical Climate