Frost dates in Duvall, WA
The average last spring frost in Duvall is around April 16 and the first fall frost is around October 24. That gives Duvall an average growing season of about 191 days.
Last spring frost
| Early (10% chance after) | March 27 |
|---|---|
| Average (50%) | April 16 |
| Late (90%) | May 6 |
First fall frost
| Early (10%) | October 9 |
|---|---|
| Average (50%) | October 24 |
| Late (90% chance before) | November 11 |