| | Johnston, IA | Dover, MA | United States |
| Rainfall | 35.9 | 48.7 | 38.1 |
| Snowfall | 34.1 | 46.9 | 27.8 |
| Precipitation Days | 109 | 121.5 | 106.2 |
| Sunny | 199 | 201 | 205 |
| Avg. July High | 85.7 | 82.9 | 85.8 |
| Avg. Jan. Low | 12.5 | 16.3 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 6.9 | 7 |
| UV Index | 4 | 3.5 | 4.3 |
| Elevation ft. | 830 | 171 | 2443 |