| | Glen Rock, PA | Annapolis, MD | United States |
| Rainfall | 42.7 | 45.3 | 38.1 |
| Snowfall | 29.1 | 12 | 27.8 |
| Precipitation Days | 118.7 | 110.1 | 106.2 |
| Sunny | 199 | 208 | 205 |
| Avg. July High | 85.3 | 87.1 | 85.8 |
| Avg. Jan. Low | 20.5 | 28.4 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7.4 | 7 |
| UV Index | 3.9 | 4 | 4.3 |
| Elevation ft. | 545 | 43 | 2443 |