Frost dates in American Canyon, CA
The average last spring frost in American Canyon is around March 27 and the first fall frost is around November 17. That gives American Canyon an average growing season of about 235 days.
Last spring frost
| Early (10% chance after) | February 2 |
|---|---|
| Average (50%) | March 27 |
| Late (90%) | May 4 |
First fall frost
| Early (10%) | November 1 |
|---|---|
| Average (50%) | November 17 |
| Late (90% chance before) | November 29 |