Winter climate problems in Kunming and Guiyang

Kunming is close to the equatorial tropics. It's warmer in winter and cooler in summer. There are many good weather in Kunming, and ultraviolet rays are stronger than yours. The climate in Guiyang is humid and cool. Freezing rain is a common natural phenomenon in Guizhou, Hunan, northern Guangdong, northwestern Guangxi, Chongqing and other places, which is caused by the intersection of strong cold airflow in the north and warm and humid airflow in the south.