10. Dodge City, Kansas
> Average temperature, September 2021: 74.7°F (6.2°F above average)
> Average September temperature, 1901-2000: 68.5°F
> Hottest September on record: 2019 (78.0°F)
> Coldest September on record: 1974 (62.2°F)
9. International Falls, Minnesota
> Average temperature, September 2021: 59.0°F (6.3°F above average)
> Average September temperature, 1901-2000: 52.7°F
> Hottest September on record: 2009 (60.1°F)
> Coldest September on record: 1965 (45.6°F)
8. Cheyenne, Wyoming
> Average temperature, September 2021: 63.5°F (6.6°F above average)
> Average September temperature, 1901-2000: 56.9°F
> Hottest September on record: 2015 (64.7°F)
> Coldest September on record: 1912 (48.0°F)
7. Minot, North Dakota
> Average temperature, September 2021: 65.0°F (6.8°F above average)
> Average September temperature, 1901-2000: 58.2°F
> Hottest September on record: 2009 (66.1°F)
> Coldest September on record: 1965 (47.1°F)
6. Carson City, Nevada
> Average temperature, September 2021: 70.2°F (6.8°F above average)
> Average September temperature, 1901-2000: 63.4°F
> Hottest September on record: 2012 (70.7°F)
> Coldest September on record: 1965 (57.1°F)