| | Swan, IA | Eddyville, IA | United States |
| Rainfall | 36.7 | 37.7 | 38.1 |
| Snowfall | 30 | 25.7 | 27.8 |
| Precipitation Days | 99.1 | 103.4 | 106.2 |
| Sunny | 202 | 203 | 205 |
| Avg. July High | 84.7 | 85 | 85.8 |
| Avg. Jan. Low | 11.9 | 12.6 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7 | 7 |
| UV Index | 4 | 3.9 | 4.3 |
| Elevation ft. | 778 | 669 | 2443 |