| | Duncan, OK | Peru, IL | United States |
| Rainfall | 36.5 | 37 | 38.1 |
| Snowfall | 4.2 | 22.2 | 27.8 |
| Precipitation Days | 75.1 | 115.1 | 106.2 |
| Sunny | 241 | 191 | 205 |
| Avg. July High | 93.8 | 85.1 | 85.8 |
| Avg. Jan. Low | 27.3 | 14.2 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7 | 7 |
| UV Index | 4.9 | 3.8 | 4.3 |
| Elevation ft. | 1125 | 600 | 2443 |