Frost dates in St. Hilaire, MN
The average last spring frost in St. Hilaire is around May 18 and the first fall frost is around September 27. That gives St. Hilaire an average growing season of about 132 days.
Last spring frost
| Early (10% chance after) | April 28 |
|---|---|
| Average (50%) | May 18 |
| Late (90%) | May 28 |
First fall frost
| Early (10%) | September 12 |
|---|---|
| Average (50%) | September 27 |
| Late (90% chance before) | October 30 |