Frost dates in Spokane, WA
The average last spring frost in Spokane is around April 29 and the first fall frost is around October 13. That gives Spokane an average growing season of about 167 days.
Last spring frost
| Early (10% chance after) | April 18 |
|---|---|
| Average (50%) | April 29 |
| Late (90%) | May 11 |
First fall frost
| Early (10%) | October 2 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | October 31 |