| | Downingtown, PA | Clark, NJ | United States |
| Rainfall | 48.9 | 48.7 | 38.1 |
| Snowfall | 28.5 | 24.9 | 27.8 |
| Precipitation Days | 124.9 | 115.1 | 106.2 |
| Sunny | 205 | 205 | 205 |
| Avg. July High | 84.9 | 86.3 | 85.8 |
| Avg. Jan. Low | 20.4 | 23.1 | 21.7 |
| Comfort Index (higher=better) | 7.1 | 7.3 | 7 |
| UV Index | 4 | 3.8 | 4.3 |
| Elevation ft. | 239 | 75 | 2443 |