Frost dates in Somerville, MA
The average last spring frost in Somerville is around April 7 and the first fall frost is around November 9. That gives Somerville an average growing season of about 216 days.
Last spring frost
| Early (10% chance after) | March 25 |
|---|---|
| Average (50%) | April 7 |
| Late (90%) | April 18 |
First fall frost
| Early (10%) | October 23 |
|---|---|
| Average (50%) | November 9 |
| Late (90% chance before) | November 23 |