Frost dates in Rothsay, MN
The average last spring frost in Rothsay is around May 11 and the first fall frost is around October 1. That gives Rothsay an average growing season of about 143 days.
Last spring frost
| Early (10% chance after) | April 23 |
|---|---|
| Average (50%) | May 11 |
| Late (90%) | May 25 |
First fall frost
| Early (10%) | September 17 |
|---|---|
| Average (50%) | October 1 |
| Late (90% chance before) | October 15 |