| | Johnston, IA | Mountain Home AFB, ID | United States |
| Rainfall | 35.9 | 8.8 | 38.1 |
| Snowfall | 34.1 | 6.1 | 27.8 |
| Precipitation Days | 109 | 59.7 | 106.2 |
| Sunny | 199 | 210 | 205 |
| Avg. July High | 85.7 | 93.5 | 85.8 |
| Avg. Jan. Low | 12.5 | 23.6 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 7.4 | 7 |
| UV Index | 4 | 4.2 | 4.3 |
| Elevation ft. | 830 | 2998 | 2443 |