| | Edgewood, MD | Joppatowne, MD | United States |
| Rainfall | 47 | 45 | 38 |
| Snowfall | 18 | 18 | 28 |
| Precipitation | 120 | 118 | 106 |
| Sunny | 213 | 212 | 205 |
| Avg. July High | 88 | 88 | 86 |
| Avg. Jan. Low | 25 | 27 | 22 |
| Comfort Index (higher=better) | 7.2 | 7.3 | 7 |
| UV Index | 3.9 | 3.9 | 4.3 |
| Elevation | 52 | 239 | 2443 |