| | McSherrystown, PA | Gettysburg, PA | United States |
| Rainfall | 42.5 | 42.9 | 38.1 |
| Snowfall | 25.6 | 25.1 | 27.8 |
| Precipitation Days | 117.8 | 119.1 | 106.2 |
| Sunny | 196 | 195 | 205 |
| Avg. July High | 86.2 | 85.5 | 85.8 |
| Avg. Jan. Low | 19.9 | 20.6 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7.2 | 7 |
| UV Index | 4.2 | 4.2 | 4.3 |
| Elevation ft. | 587 | 535 | 2443 |