Why is it still so hot in winter in Shijiazhuang?

Four days from now, the temperature in Lizhuang will drop by ten degrees # Minsheng Hebei # Do you feel the ice and fire? It was unusually warm after work yesterday, and it was terribly cold this morning. It turned out that it was not because of the return of light, but because of the warming of solar radiation and the "foehn effect". In the next four days, the decline in Shijiazhuang will reach 12.5℃. It is estimated that there will be 4~6 northwest winds in Shijiazhuang and northern Cangzhou during the day. Today and tomorrow, the temperature in the whole province has generally dropped, so it's time for down jackets to appear.