Frost dates in McGregor, MN
The average last spring frost in McGregor is around May 17 and the first fall frost is around September 24. That gives McGregor an average growing season of about 130 days.
Last spring frost
| Early (10% chance after) | May 1 |
|---|---|
| Average (50%) | May 17 |
| Late (90%) | June 5 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 24 |
| Late (90% chance before) | October 8 |