Frost dates in Long Prairie, MN
The average last spring frost in Long Prairie is around May 16 and the first fall frost is around September 22. That gives Long Prairie an average growing season of about 129 days.
Last spring frost
| Early (10% chance after) | April 26 |
|---|---|
| Average (50%) | May 16 |
| Late (90%) | June 1 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 22 |
| Late (90% chance before) | October 9 |