What is the reason why Kunming has four seasons like spring (according to senior high school geography)

(1) Kunming is located in Yunnan-Guizhou Plateau. In summer and autumn, due to high altitude, the temperature is low.

(2) In winter and spring, Kunming is affected by quasi-static front, with many sunny days, abundant sunshine and high temperature.

Kunming is located in Yunnan-Guizhou Plateau. 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 gives people 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 in Kunming". Guiyang, under the control of the cold air mass of the quasi-static front, has formed a rainy and continuous weather with "no sunny days", while Kunming, under the control of the warm air mass of the quasi-static front, is sunny and warm as spring.

Extended data:

Kunming enjoys the reputation of "Spring City", and China is a gateway city open to Southeast Asia and South Asia, and a national historical and cultural city. It is an important tourist and commercial city in China and one of the important central cities in the western region.

Kunming is a mountainous landform, generally high in the north and low in the south. There are many caves and karst landforms, and there are Shilinbazi 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.

Kunming is surrounded by mountains on three sides and Dianchi Lake on the south. Dianchi Lake is the largest plateau lake in Yunnan Province and the sixth largest freshwater lake in China, with beautiful scenery on both sides. Because it is located in the low-latitude plateau, it has a climate of "four seasons like spring". In particular, Dianchi Lake, a plateau lake, is adjusting its temperature and humidity, making the air here fresh, the sky is high and the clouds are light, the sun is shining, and flowers are always blooming.

There is also a saying in Kunming that "a rain turns into winter", which means that in the cold season, as long as it rains, Kunming will immediately have a strong sense of winter, and the feeling of wet and cold is obvious. The reason for this phenomenon is that Kunming is generally controlled by the heating air mass on sunny days. If the cold air crosses the mountain at the junction of Yunnan and Guizhou and meets the heating mass in Kunming, it will bring rain and cool down.

As a result, the temperature in Kunming fell into a downturn. If the intensity of cold air is high, the temperature in Kunming will drop below freezing point and snowflakes will fly.

Baidu Encyclopedia-Kunming