Frost dates in Federal Dam, MN
The average last spring frost in Federal Dam is around May 18 and the first fall frost is around September 22. That gives Federal Dam an average growing season of about 127 days.
Last spring frost
| Early (10% chance after) | May 3 |
|---|---|
| Average (50%) | May 18 |
| Late (90%) | June 5 |
First fall frost
| Early (10%) | September 1 |
|---|---|
| Average (50%) | September 22 |
| Late (90% chance before) | October 7 |