Chicago is not the windiest city in the United States. Chicago’s average wind speed of 10.4 miles [16.7 kilometers] per hour is beat by Boston (12.5 [20.1]), Honolulu (11.3 [18.2]), Dallas and Kansas City (both 10.7 [17.2]), and especially in the true windy city, Mt. Washington, New Hampshire (35.3 [56.8]).