According to the forecast of 20 13, 12 and 19 by the Central Meteorological Observatory, there will be 5 ~ 7 northerly winds in northern China in the next three days, and the temperature will drop by

According to the forecast of 20 13, 12 and 19 by the Central Meteorological Observatory, there will be 5 ~ 7 northerly winds in northern China in the next three days, and the temperature will drop by 8. A, there is snowfall in the question, which does not meet the meaning of the question;

B, the problem is affected by cold air and there is snowfall, which does not meet the meaning of the question;

C, the weather system will bring snowfall, cooling, and wind, so it is a concrete manifestation of cold weather caused by cold front, so it is correct;

D typhoons occur frequently in summer and autumn, so they don't meet the question.

So choose: C.