What is the reason analysis that affects the weather in Weining in winter?

The influence of quasi-static front in Kunming and the southward cold air (airflow) formed under the control of Mongolian high pressure in the north. The quasi-static front caused the winter in Weining, not only the continuous drizzle in Weining, but also in most parts of Guizhou. The quasi-static front was influenced by the northwest-southeast Wumeng Mountains during the eastward advance, which caused the front to stay in Weining near Wumeng for a long time. On the other hand, affected by the cold air from the north to the south, coupled with the high altitude and low temperature in Weining (every 100 meters above sea level, the temperature drops by 0. 6 degrees Celsius). There are four factors that affect the climate: atmospheric circulation, solar radiation, ground conditions (altitude) and ocean currents.