Frost dates in Grygla, MN
The average last spring frost in Grygla is around May 25 and the first fall frost is around September 11. That gives Grygla an average growing season of about 109 days.
Last spring frost
| Early (10% chance after) | May 6 |
|---|---|
| Average (50%) | May 25 |
| Late (90%) | June 4 |
First fall frost
| Early (10%) | August 22 |
|---|---|
| Average (50%) | September 11 |
| Late (90% chance before) | October 11 |