Frost dates in Burlington, WA
The average last spring frost in Burlington is around April 12 and the first fall frost is around October 17. That gives Burlington an average growing season of about 188 days.
Last spring frost
| Early (10% chance after) | March 24 |
|---|---|
| Average (50%) | April 12 |
| Late (90%) | April 27 |
First fall frost
| Early (10%) | September 27 |
|---|---|
| Average (50%) | October 17 |
| Late (90% chance before) | November 7 |