| | Upper Darby, PA | Willow Grove, PA | United States |
| Rainfall | 45.2 | 47.8 | 38.1 |
| Snowfall | 18 | 17.4 | 27.8 |
| Precipitation Days | 118.4 | 108.9 | 106.2 |
| Sunny | 204 | 203 | 205 |
| Avg. July High | 87.3 | 85.3 | 85.8 |
| Avg. Jan. Low | 26.2 | 24.1 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 7.3 | 7 |
| UV Index | 3.8 | 4.1 | 4.3 |
| Elevation ft. | 56 | 269 | 2443 |