Frost dates in Wallace, ID
The average last spring frost in Wallace is around May 16 and the first fall frost is around September 21. That gives Wallace an average growing season of about 128 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 16 |
| Late (90%) | June 3 |
First fall frost
| Early (10%) | September 6 |
|---|---|
| Average (50%) | September 21 |
| Late (90% chance before) | October 12 |