| | Chesterbrook, PA | Long Grove, IL | United States |
| Rainfall | 48.3 | 37.4 | 38.1 |
| Snowfall | 20.7 | 37.8 | 27.8 |
| Precipitation Days | 116.1 | 123.9 | 106.2 |
| Sunny | 203 | 187 | 205 |
| Avg. July High | 87.4 | 83.2 | 85.8 |
| Avg. Jan. Low | 20.5 | 12.4 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 6.7 | 7 |
| UV Index | 4 | 3.7 | 4.3 |
| Elevation ft. | 164 | 732 | 2443 |