What are the main factors that affect Kunming's "neither cold in winter nor hot in summer"?

Kunming belongs to the subtropical-plateau mountain monsoon climate with low latitude north latitude. Affected by the warm and humid airflow in the southwest of the Indian Ocean, the sunshine is long and the frost period is short. The annual average temperature is 65,438 0.5℃, the summer average temperature is 65,438 0.9℃ ~ 22℃, and the highest temperature does not exceed 365,438 0.5℃. The average monthly temperature in winter is about 6℃ ~ 8℃. The average annual sunshine is about 2200 hours, and the frost-free period is over 240 days. The climate is mild, there is no heat in summer and no cold in winter. The seasons are like spring and the climate is pleasant. The annual precipitation is 1035mm, which has typical temperate climate characteristics. The urban temperature is between 0℃ and 29℃, and the annual temperature difference is the smallest in China. Such a climate feature is rare in the world, with flowers blooming all year round and evergreen vegetation. It is the famous "Spring City" and "Flower City". Some people choose to go when it is extremely hot in summer or extremely cold in winter, so that they can escape the summer or the cold.

Although Kunming is located in the subtropical north latitude, there is no heat in summer and no cold in winter in most parts of the country, and it is known as the "Spring City" at home and abroad. One of its characteristics is warm, dry and rainy in spring, and the daily temperature changes greatly. The average monthly temperature is mostly below 20℃. Second, there is no intense heat in summer, and the rainfall is concentrated, accounting for more than 60% of the annual rainfall, with an average temperature of 22℃. Third, the autumn is crisp, the weather is refreshing, the rain is reduced, and the frost period begins. Fourth, it is not cold in winter, with plenty of sunshine and little rain in the sky. The average monthly sunny day is about 20 days, sunshine is about 230 hours, and rainy day is about 4 days. The monthly rainfall only accounts for 3-5% of the whole year.

The best travel time in Kunming can be March (the month with the most ethnic festivals, Yunnan); Dressing Tips: The temperature difference between morning and evening in Kunming is relatively large, so it is generally necessary to prepare an extra coat when going out.

Kunming has a large daily temperature difference and high ultraviolet intensity. There are four seasons in a day, and when it rains, it becomes winter. In winter and spring, the daily temperature difference can reach 12 ~ 20℃ in winter and 4~ 10℃ in summer.

The main features of the climate in Kunming are as follows: 1. Spring is warm, dry and rainy, with strong evaporation and large daily temperature difference; 2. There is no intense heat in summer, with concentrated rainfall, heavy rain and storms, and precipitation accounts for more than 60% of the whole year, which is prone to floods; 3. It's crisp in autumn, crisp in autumn and less rain. 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; There is no cold in winter, with plenty of sunshine, bright sunshine and little rain.