| | Catonsville, MD | Berlin, MD | United States |
| Rainfall | 44.7 | 44.5 | 38.1 |
| Snowfall | 18 | 8.3 | 27.8 |
| Precipitation Days | 114.1 | 114.9 | 106.2 |
| Sunny | 209 | 203 | 205 |
| Avg. July High | 87 | 86 | 85.8 |
| Avg. Jan. Low | 24.1 | 27.3 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.4 | 7 |
| UV Index | 4.1 | 3.9 | 4.3 |
| Elevation ft. | 479 | 36 | 2443 |