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In 1990, Chicago ranked twenty-first in the list of 68 windy cities, with an average wind speed of 10.3 miles (16.6 kilometers) per hour. Cheyenne, Wyoming, with an average wind speed of 12.9 miles ( 20.8 kilometers) per hour, ranks number one. It is closely followed by Great Falls, Montana, which has an average wind speed of 12.8 miles (20.6 kilometers) per hour.
The highest surface wind speed ever recorded was on Mount Washington, New Hampshire, at an elevation of 6,288 feet (1.9 kilometers). On April 12, 1934, its wind was 231 miles (371.7 kilometers) per hour and its average wind speed was 35 miles (56.3 kilometers) per hour.
Sources: Krantz, Les. The Best and Worst of Everything, pp. 102-3; Williams, Jack. The Weather Book, p. 43.
The windiest city in the world is Wellington, the capital city of New Zealand, with an average windspeed of 18mph. In comparison, the average windspeed in Chicago is around 11mph.
Wellington experiences gusts exceding gale force (47mph) on 175 days per year.
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