| | Swarthmore, PA | Newtown, CT | United States |
| Rainfall | 43.8 | 51.4 | 38.1 |
| Snowfall | 20 | 42.1 | 27.8 |
| Precipitation Days | 120.3 | 122.7 | 106.2 |
| Sunny | 208 | 175 | 205 |
| Avg. July High | 87.4 | 83.5 | 85.8 |
| Avg. Jan. Low | 26.2 | 16.5 | 21.7 |
| Comfort Index (higher=better) | 7.3 | 6.9 | 7 |
| UV Index | 3.8 | 3.4 | 4.3 |
| Elevation ft. | 131 | 472 | 2443 |