| | Devon, PA | Haverford, PA | United States |
| Rainfall | 46.7 | 48.4 | 38.1 |
| Snowfall | 21.6 | 17.1 | 27.8 |
| Precipitation Days | 114.8 | 116.8 | 106.2 |
| Sunny | 202 | 204 | 205 |
| Avg. July High | 86.6 | 87.7 | 85.8 |
| Avg. Jan. Low | 20.1 | 23.3 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.3 | 7 |
| UV Index | 4 | 3.8 | 4.3 |
| Elevation ft. | 499 | 280 | 2443 |