| | Frederick, MD | Boonsboro, MD | United States |
| Rainfall | 43 | 42 | 38 |
| Snowfall | 23 | 20 | 28 |
| Precipitation | 107 | 115 | 106 |
| Sunny | 200 | 193 | 205 |
| Avg. July High | 88 | 87 | 86 |
| Avg. Jan. Low | 23 | 21 | 22 |
| Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
| UV Index | 4.2 | 3.9 | 4.3 |
| Elevation | 282 | 545 | 2443 |