Summed selected street length contained within the 2012 USDA Plant Hardiness Zones in Massachusetts.
| 2012 Plant hardiness zone | Street length (meters) | Percent statewide total |
|---|---|---|
| Zone 4b | 0 | 0.00% |
| Zone 5a | 608,874 | 0.87% |
| Zone 5b | 8,632,237 | 12.37% |
| Zone 6a | 26,667,085 | 38.21% |
| Zone 6b | 26,676,845 | 38.22% |
| Zone 7a | 7,102,094 | 10.18% |
| Zone 7b | 100,533 | 0.14% |