| | Berlin, MD | Montgomery, NJ | United States |
| Rainfall | 44.5 | 48.1 | 38.1 |
| Snowfall | 8.3 | 23.3 | 27.8 |
| Precipitation Days | 114.9 | 121 | 106.2 |
| Sunny | 203 | 206 | 205 |
| Avg. July High | 86 | 85.5 | 85.8 |
| Avg. Jan. Low | 27.3 | 20.9 | 21.7 |
| Comfort Index (higher=better) | 7.4 | 7.2 | 7 |
| UV Index | 3.9 | 3.6 | 4.3 |
| Elevation ft. | 36 | 118 | 2443 |