| | Randallstown, MD | Aberdeen, MD | United States |
| Rainfall | 44.4 | 46.6 | 38.1 |
| Snowfall | 20.2 | 14.3 | 27.8 |
| Precipitation Days | 116.2 | 120.3 | 106.2 |
| Sunny | 211 | 208 | 205 |
| Avg. July High | 86.8 | 88.2 | 85.8 |
| Avg. Jan. Low | 23.7 | 24.6 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.2 | 7 |
| UV Index | 4.1 | 3.9 | 4.3 |
| Elevation ft. | 581 | 79 | 2443 |