| | Norwalk, IA | Pella, IA | United States |
| Rainfall | 36.1 | 37.2 | 38.1 |
| Snowfall | 30.5 | 26.9 | 27.8 |
| Precipitation Days | 104.6 | 91.3 | 106.2 |
| Sunny | 198 | 203 | 205 |
| Avg. July High | 85.6 | 84.8 | 85.8 |
| Avg. Jan. Low | 12.5 | 11.8 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7 | 7 |
| UV Index | 3.9 | 4 | 4.3 |
| Elevation ft. | 951 | 886 | 2443 |