Frost dates in Washtucna, WA
The average last spring frost in Washtucna is around May 10 and the first fall frost is around October 2. That gives Washtucna an average growing season of about 145 days.
Last spring frost
| Early (10% chance after) | April 14 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | June 3 |
First fall frost
| Early (10%) | September 12 |
|---|---|
| Average (50%) | October 2 |
| Late (90% chance before) | October 26 |