Frost dates in Gwinner, ND
The average last spring frost in Gwinner is around May 13 and the first fall frost is around September 24. That gives Gwinner an average growing season of about 134 days.
Last spring frost
| Early (10% chance after) | April 26 |
|---|---|
| Average (50%) | May 13 |
| Late (90%) | June 1 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 24 |
| Late (90% chance before) | October 11 |