| | Fairfield township (Westmoreland County), PA | Washington, PA | United States |
| Rainfall | 46.9 | 39.1 | 38.1 |
| Snowfall | 39 | 32.8 | 27.8 |
| Precipitation Days | 148.2 | 148.2 | 106.2 |
| Sunny | 162 | 164 | 205 |
| Avg. July High | 84.5 | 82.3 | 85.8 |
| Avg. Jan. Low | 19.1 | 18.9 | 21.7 |
| Comfort Index (higher=better) | 6.9 | 6.9 | 7 |
| UV Index | 3.5 | 3.6 | 4.3 |
| Elevation ft. | 1214 | 1178 | 2443 |