| City | Hot day | 1961-1990 | 2015-2024 | Added |
|---|---|---|---|---|
| Miami | 87.3F | 11.4 | 56.8 | 45.4 |
| Las Vegas | 105.4F | 9.5 | 40.2 | 30.7 |
| Denver | 89.4F | 9.6 | 39.6 | 30 |
| Salt Lake City | 93.1F | 9.7 | 37.2 | 27.5 |
| Chicago | 85.5F | 10 | 21.7 | 11.7 |
| New York | 87.9F | 11 | 20.9 | 9.9 |
| Philadelphia | 90.1F | 10.7 | 20 | 9.3 |
| Boston | 88F | 10.4 | 19.5 | 9.1 |
| Dallas | 98.5F | 10.2 | 19.3 | 9.1 |
| Portland | 89.5F | 10.8 | 19.1 | 8.3 |
| Phoenix | 110.3F | 9.5 | 16.2 | 6.7 |
| Houston | 95.3F | 10.3 | 16.7 | 6.4 |
| Minneapolis | 88F | 10 | 15.9 | 5.9 |
| Detroit | 86.7F | 10.3 | 15.6 | 5.3 |
| Atlanta | 92F | 9.9 | 13.8 | 3.9 |
| Kansas City | 94.1F | 9.7 | 11.4 | 1.7 |
| Seattle | 82.6F | 10.7 | 12.4 | 1.7 |
| Nashville | 93.3F | 9.8 | 11.4 | 1.6 |
| Washington | 92.8F | 10.5 | 12 | 1.5 |