Frost dates in Waitsburg, WA
The average last spring frost in Waitsburg is around April 30 and the first fall frost is around October 11. That gives Waitsburg an average growing season of about 164 days.
Last spring frost
| Early (10% chance after) | April 9 |
|---|---|
| Average (50%) | April 30 |
| Late (90%) | May 24 |
First fall frost
| Early (10%) | September 21 |
|---|---|
| Average (50%) | October 11 |
| Late (90% chance before) | October 27 |