| Naperville, IL | Lancaster, PA | United States |
Rainfall | 38.6 | 42.6 | 38.1 |
Snowfall | 28.7 | 20 | 27.8 |
Precipitation Days | 120.3 | 122.3 | 106.2 |
Sunny | 189 | 202 | 205 |
Avg. July High | 83.8 | 85.4 | 85.8 |
Avg. Jan. Low | 15.1 | 21.3 | 21.7 |
Comfort Index (higher=better) | 6.9 | 7.2 | 7 |
UV Index | 3.4 | 3.8 | 4.3 |
Elevation ft. | 709 | 361 | 2443 |