| Naperville, IL | Monrovia, CA | United States |
Rainfall | 39 | 20 | 38 |
Snowfall | 29 | 0 | 28 |
Precipitation | 120 | 38 | 106 |
Sunny | 189 | 285 | 205 |
Avg. July High | 84 | 88 | 86 |
Avg. Jan. Low | 15 | 47 | 22 |
Comfort Index (higher=better) | 6.9 | 9.1 | 7 |
UV Index | 3.4 | 6.2 | 4.3 |
Elevation | 709 | 571 | 2443 |