Why is Chicago called "windy city"?

Because the latitude of Chicago is similar to that of Cleveland and Toledo in new york, but because the downtown area of Chicago is close to the curved shore of Lake Michigan. After June+10, 65438, a large amount of cold air generated in the northern part of Lake Michigan rose from the northern forest, swept the lake surface of Lake Michigan and blew directly to the urban area. In addition, the streets and rivers in the urban area are spacious, and cold air will blow to most parts of the urban area along these rivers, so Chicago is called the "windy city".