| | Joppatowne, MD | Edgewood, MD | United States |
| Rainfall | 44.6 | 46.5 | 38.1 |
| Snowfall | 18 | 17.9 | 27.8 |
| Precipitation Days | 117.5 | 120.2 | 106.2 |
| Sunny | 212 | 213 | 205 |
| Avg. July High | 88.1 | 88.2 | 85.8 |
| Avg. Jan. Low | 26.9 | 24.7 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.2 | 7 |
| UV Index | 3.9 | 3.9 | 4.3 |
| Elevation ft. | 239 | 52 | 2443 |