| | Onawa, IA | Mapleton, IA | United States |
| Rainfall | 31.8 | 31 | 38.1 |
| Snowfall | 26.2 | 29.1 | 27.8 |
| Precipitation Days | 79.7 | 80.7 | 106.2 |
| Sunny | 212 | 207 | 205 |
| Avg. July High | 86.4 | 85.1 | 85.8 |
| Avg. Jan. Low | 9.5 | 9.2 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7 | 7 |
| UV Index | 3.9 | 3.9 | 4.3 |
| Elevation ft. | 1050 | 1138 | 2443 |