Frost dates in Tower, MN
The average last spring frost in Tower is around June 14 and the first fall frost is around September 5. That gives Tower an average growing season of about 83 days.
Last spring frost
| Early (10% chance after) | May 21 |
|---|---|
| Average (50%) | June 14 |
| Late (90%) | July 17 |
First fall frost
| Early (10%) | August 6 |
|---|---|
| Average (50%) | September 5 |
| Late (90% chance before) | September 25 |