Frost dates in Bothell, WA
The average last spring frost in Bothell is around March 8 and the first fall frost is around November 27. That gives Bothell an average growing season of about 264 days.
Last spring frost
| Early (10% chance after) | February 12 |
|---|---|
| Average (50%) | March 8 |
| Late (90%) | March 27 |
First fall frost
| Early (10%) | November 1 |
|---|---|
| Average (50%) | November 27 |
| Late (90% chance before) | December 18 |