Why is the climate in Kunming like spring all the year round?

The average maximum temperature in Kunming in winter is around 15℃, which is comparable to that in Fuzhou, but the altitude in Kunming is high, which is similar to that in Fuzhou, indicating that Kunming is still relatively warm. Of course, after all, the altitude is high, so Kunming is still relatively cold in winter, with an average minimum temperature of about 3℃. Kunming is called "Spring City", with four seasons like spring. The average annual temperature in Kunming is about 15℃, the annual temperature difference is small, the annual precipitation is about 1050 mm, and the frost-free period is more than 240 days. The climate is pleasant and it is very suitable for living. Because the climate in Kunming is like spring all the year round, it is very suitable for planting flowers. The annual output of fresh cut flowers in Kunming exceeds 5.5 billion.

Kunming is located near 25 north latitude, which is similar to that of Fuzhou and Taipei. Fuzhou and Taipei are always over 30 degrees in summer, and there are many high temperature weather above 35℃, but the highest temperature in Kunming rarely exceeds 30℃. According to Wikipedia, the extreme maximum temperature recorded in Kunming 196 1 until 2000 was only 32.3℃. Due to the high altitude, the temperature in summer and autumn is lower than that in most parts of the country, especially in the morning and evening, which has the feeling of spring; In winter and spring, the warm air mass in the south and the cold air mass in the north meet between Guiyang and Kunming in Yunnan-Guizhou Plateau, forming a "quasi-static front station in Kunming".

In the middle, Kunming is a mountainous landform. The terrain is generally high in the north and low in the south, with many caves and karst landforms. There are Shilin bazi in karst basin. It belongs to the mountain monsoon climate of the northern subtropical low latitude plateau. The annual average temperature 16.5℃, the annual average rainfall 1450 mm, the frost-free period of 278 days, and the climate is pleasant. The climate of Kunming is characterized by no severe cold in winter, no intense heat in summer, and four seasons like spring, enjoying the reputation of a spring city.

Kunming, located at about 25 north latitude, receives more sunlight and heat all year round. It is also in the monsoon region and belongs to the tropical monsoon climate. In summer, due to the influence of warm and humid airflow from southwest Indian Ocean, there are many rainy days, clouds and rain weaken solar radiation, and there is less sunshine, so the ground humidity is not easy to rise.