Frost dates in Mountain Lake, MN
The average last spring frost in Mountain Lake is around May 7 and the first fall frost is around October 3. That gives Mountain Lake an average growing season of about 149 days.
Last spring frost
| Early (10% chance after) | April 19 |
|---|---|
| Average (50%) | May 7 |
| Late (90%) | May 19 |
First fall frost
| Early (10%) | September 16 |
|---|---|
| Average (50%) | October 3 |
| Late (90% chance before) | October 21 |