Frost dates in Two Harbors, MN
The average last spring frost in Two Harbors is around May 14 and the first fall frost is around October 3. That gives Two Harbors an average growing season of about 142 days.
Last spring frost
| Early (10% chance after) | April 28 |
|---|---|
| Average (50%) | May 14 |
| Late (90%) | May 31 |
First fall frost
| Early (10%) | September 19 |
|---|---|
| Average (50%) | October 3 |
| Late (90% chance before) | October 17 |