Affected by the northward cyclone from the region of Yangtze River and Huaihe River, there might be obviously cold weathers of sleets in Changchun City from November 17 to 20, 2020. The precipitation is mainly concentrated on November 18 and 19, with an average amount of 35-60mm in the whole city. There might be light rain on November 17 and 18, moderate to heavy rain at night of November 18, light rain to heavy snow in the northern part of Nongan and Yushu, and light rain to moderate snow in other places. from day to night on November 19.