| | Avon, MA | South Hadley, MA | United States |
| Rainfall | 49.3 | 46.3 | 38.1 |
| Snowfall | 47 | 40.1 | 27.8 |
| Precipitation Days | 127.5 | 115.9 | 106.2 |
| Sunny | 201 | 190 | 205 |
| Avg. July High | 83.4 | 83.1 | 85.8 |
| Avg. Jan. Low | 18.7 | 14.4 | 21.7 |
| Comfort Index (higher=better) | 7 | 6.9 | 7 |
| UV Index | 3.5 | 3.3 | 4.3 |
| Elevation ft. | 213 | 246 | 2443 |