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American cities with the most unusually warm temperatures in 2021
<p>Tomwang112 / Getty Images</p>
American cities with the most unusually warm temperatures this year | This list of U.S. cities that had far hotter temperatures in September than the historical average are mostly inland and in the northern and central parts of the contiguous 48 states. Among the 25 cities, North Dakota has five, while Kansas and Nevada are home to three, including Las Vegas. The only cities on this list outside this region are Montpelier, Vermont, and Lubbock, Texas. Temperatures in the cities on the list were at least 5.2 degrees above their respective historical averages in September. In the hottest city, they were 7.8 degrees above historical average.