Frost dates in Burien, WA
The average last spring frost in Burien is around March 15 and the first fall frost is around November 12. That gives Burien an average growing season of about 242 days.
Last spring frost
| Early (10% chance after) | February 19 |
|---|---|
| Average (50%) | March 15 |
| Late (90%) | April 14 |
First fall frost
| Early (10%) | October 29 |
|---|---|
| Average (50%) | November 12 |
| Late (90% chance before) | December 5 |