| | Derwood, MD | Glenview, IL | United States |
| Rainfall | 42.7 | 36.3 | 38.1 |
| Snowfall | 15.8 | 36 | 27.8 |
| Precipitation Days | 109.3 | 125.3 | 106.2 |
| Sunny | 201 | 186 | 205 |
| Avg. July High | 87 | 83 | 85.8 |
| Avg. Jan. Low | 25 | 16.8 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 6.9 | 7 |
| UV Index | 4.1 | 3.6 | 4.3 |
| Elevation ft. | 472 | 653 | 2443 |