| | Webster, IA | Ottumwa, IA | United States |
| Rainfall | 37.2 | 38.7 | 38.1 |
| Snowfall | 27.4 | 24.8 | 27.8 |
| Precipitation Days | 100.8 | 106.7 | 106.2 |
| Sunny | 197 | 200 | 205 |
| Avg. July High | 84.4 | 85.2 | 85.8 |
| Avg. Jan. Low | 11.3 | 13.6 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7 | 7 |
| UV Index | 3.7 | 3.9 | 4.3 |
| Elevation ft. | 856 | 673 | 2443 |