Frost dates in Wilton, ND
The average last spring frost in Wilton is around May 14 and the first fall frost is around September 23. That gives Wilton an average growing season of about 132 days.
Last spring frost
| Early (10% chance after) | April 30 |
|---|---|
| Average (50%) | May 14 |
| Late (90%) | May 30 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 6 |