| | Polo, IL | Mount Morris, IL | United States |
| Rainfall | 38.4 | 38.4 | 38.1 |
| Snowfall | 29.1 | 28 | 27.8 |
| Precipitation Days | 109.7 | 109.8 | 106.2 |
| Sunny | 191 | 193 | 205 |
| Avg. July High | 83.7 | 83.7 | 85.8 |
| Avg. Jan. Low | 12 | 12 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 6.9 | 7 |
| UV Index | 3.6 | 3.6 | 4.3 |
| Elevation ft. | 863 | 909 | 2443 |