Frost dates in Phoenix, OR
The average last spring frost in Phoenix is around May 7 and the first fall frost is around October 13. That gives Phoenix an average growing season of about 159 days.
Last spring frost
| Early (10% chance after) | April 20 |
|---|---|
| Average (50%) | May 7 |
| Late (90%) | May 25 |
First fall frost
| Early (10%) | September 24 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | November 3 |