| | Chelmsford, MA | Everett, MA | United States |
| Rainfall | 47.2 | 48 | 38.1 |
| Snowfall | 56 | 47.7 | 27.8 |
| Precipitation Days | 126 | 127.1 | 106.2 |
| Sunny | 201 | 200 | 205 |
| Avg. July High | 83.3 | 82.3 | 85.8 |
| Avg. Jan. Low | 15.4 | 19.1 | 21.7 |
| Comfort Index (higher=better) | 6.8 | 7 | 7 |
| UV Index | 3.5 | 3.5 | 4.3 |
| Elevation ft. | 243 | 66 | 2443 |