Kunming can be said to be "four seasons like spring". Why does it sometimes snow?

Kunming is located near 25' north latitude and belongs to subtropical zone. But the terrain is relatively high, with an average elevation of about 1 500m. The temperature decreases with the elevation, and the average temperature in the hottest July here is below 22', which is as mild and pleasant as spring. In winter, the cold air flow from the north to the south is blocked by the Daliangshan Mountain and Wumeng Mountain in the northeast, which has no effect here. However, the southwest wind blows warm air to the Indian Ocean. So even in the coldest winter of June 5438+October, it is still warm as spring.

"Four seasons like spring" refers to the general situation, indicating that the temperature difference between the four seasons here is not too big. In fact, when a strong cold current goes south, it will also make the "Spring City" enter the cold winter. For example, in the month of 65438+ 1.963, the average temperature in Kunming is only 5.2' C；; 1972 65438+February 2 1 day, a strong cold current hit Kunming, and the highest temperature on that day dropped to -2C.