| | Iselin, NJ | Sewaren, NJ | United States |
| Rainfall | 48.7 | 47.7 | 38.1 |
| Snowfall | 24.9 | 25 | 27.8 |
| Precipitation Days | 115.1 | 117.4 | 106.2 |
| Sunny | 204 | 206 | 205 |
| Avg. July High | 86.2 | 86.3 | 85.8 |
| Avg. Jan. Low | 22.2 | 23.1 | 21.7 |
| Comfort Index (higher=better) | 7.2 | 7.3 | 7 |
| UV Index | 3.9 | 3.9 | 4.3 |
| Elevation ft. | 66 | 33 | 2443 |