Frost dates in Washington, KS
The average last spring frost in Washington is around April 22 and the first fall frost is around October 13. That gives Washington an average growing season of about 174 days.
Last spring frost
| Early (10% chance after) | April 9 |
|---|---|
| Average (50%) | April 22 |
| Late (90%) | May 9 |
First fall frost
| Early (10%) | October 1 |
|---|---|
| Average (50%) | October 13 |
| Late (90% chance before) | October 28 |