The reason why the climate in Kunming is like spring all the year round

The altitude of Kunming is 1890 meters, and the north latitude is 25.04 degrees. The cities with the same latitude as Kunming are Taipei, Guilin and Kunming. Because of their high altitude, the temperature drops by 0.6 degrees every time the altitude rises 100 meters, and the temperature in Kunming is about 7.6 degrees lower than that in Guilin.

Average temperature in Kunming and Guilin in July (Kunming 19.8℃, Guilin 28.3℃).

2, from the monsoon:

Kunming is in the southwest of China, near the Indian Ocean and in the north of Indian zhina Peninsula. The monsoon blowing from the Indian Ocean in summer carries a lot of water vapor and forms a lot of precipitation in the valleys of Yunnan. Thick dark clouds blocked the sun's irradiation and reduced the role of solar radiation. The evaporation of a large amount of water vapor takes away the heat of the air and ensures the coolness of Kunming in summer.

At the same time, the change of monsoon makes the dry and wet seasons in Yunnan particularly distinct. May 5- 10/October is the rainy season, with precipitation accounting for 85% of the whole year.11-April is the dry season, with precipitation accounting for 15% of the whole year.

In the dry season, the solar radiation is high, the latitude is low, the sky is high and the clouds are light, and there is little precipitation, so the temperature remains high.

3, from kunming quasi-static stop in front of the said:

Kunming quasi-static front, also known as Yunnan-Guizhou quasi-static front, is an atmospheric phenomenon in Yunnan-Guizhou Plateau, which is mainly formed by metamorphic polar continental air mass and southwest airflow blocked by Yunnan-Guizhou Plateau topography. Clouds are low and thin, and it is easy to form continuous rainy weather.

Extended data:

Kunming is located in the subtropical north latitude. However, most areas in China have typical temperate climate characteristics and are known as "Spring City" at home and abroad.

The main features of the climate in Kunming are as follows.

1, warm in spring, dry and little rain, strong wind, strong evaporation and large daily temperature difference.

In spring, the airflow comes from the tropical continent. The weather is fine, and the average monthly temperature is below 20℃.

But the temperature difference between day and night is large, which has the characteristics of "spring in the morning, summer in the afternoon, autumn in the evening and winter in the middle of the night".

There is little precipitation in spring, low air humidity, large evaporation and rapid temperature rise, which makes agricultural production vulnerable to drought, which is not conducive to the growth and sowing of crops in spring.

There is no high temperature in summer, and the rainfall is concentrated.

In summer, the airflow comes from the tropical ocean, rainy weather, abundant water, moist soil, less solar radiation absorbed by the ground, and more radiant heat is used for water evaporation.

Therefore, in midsummer, except for areas below 1600 meters above sea level, the average temperature can reach the summer standard of 22℃ in about two months, and most other areas belong to the spring climate below 2 1℃, so there is no hot summer period.

Summer rainfall is concentrated, with heavy rain and heavy rain, and precipitation accounting for more than 60% of the whole year, which is prone to floods.

3. Autumn is crisp, the sky is crisp, the rain decreases, and the frost period begins.

In autumn, the temperature drops rapidly and the weather is dry. In most areas, the temperature is about 2℃ lower than that in spring.

Precipitation is reduced by more than half compared with summer, but it is more than winter and spring, and autumn drought is rare.

Generally, the rainy season ends in the first half of June 65438+1October, and the first frost period begins in the first half of June165438+1October.

4, there is no cold in winter, plenty of sunshine, sunny days and little rain.

In winter, the average monthly sunny day is about 20 days, sunshine is about 230 hours, and rainy day is about 4 days. The annual precipitation only accounts for 3% ~ 5% of the whole year.

Except for the valley area below 65,438+0,5500m m, the winter lasts for more than two months in most areas of the city (the five-day average temperature is lower than 65,438+00℃), and sometimes there will be cold weather, frost or snowfall, which may cause crops to suffer in early spring.

5. There is a clear distinction between dry season and rainy season

The annual precipitation is obviously divided into dry season and wet season in time distribution.

May ~ 10 is the rainy season, and the precipitation accounts for about 85% of the whole year. The dry season is 1 1 to April of the following year, and the precipitation only accounts for about 15% of the whole year.

In April and May, the precipitation 10 and 1 1 changed greatly. The precipitation in May is two or three times more than that in April, and 1 1 monthly precipitation is more than that in June 1 times.