| Grinnell, IA | Mount Vernon, IA | United States |
Rainfall | 36.6 | 36.4 | 38.1 |
Snowfall | 27.2 | 26.8 | 27.8 |
Precipitation Days | 103.8 | 107.8 | 106.2 |
Sunny | 196 | 193 | 205 |
Avg. July High | 83.9 | 84.1 | 85.8 |
Avg. Jan. Low | 9.8 | 11.1 | 21.7 |
Comfort Index (higher=better) | 6.8 | 6.9 | 7 |
UV Index | 3.7 | 3.6 | 4.3 |
Elevation ft. | 1014 | 879 | 2443 |