| | Carlisle, MA | Severna Park, MD | United States |
| Rainfall | 48 | 43.7 | 38.1 |
| Snowfall | 55.1 | 13.8 | 27.8 |
| Precipitation Days | 128.7 | 115.2 | 106.2 |
| Sunny | 201 | 211 | 205 |
| Avg. July High | 83.2 | 87.5 | 85.8 |
| Avg. Jan. Low | 16.3 | 27.1 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 7.3 | 7 |
| UV Index | 3.5 | 4 | 4.3 |
| Elevation ft. | 200 | 39 | 2443 |