Frost dates in Stillwater, MN
The average last spring frost in Stillwater is around April 25 and the first fall frost is around October 15. That gives Stillwater an average growing season of about 173 days.
Last spring frost
| Early (10% chance after) | April 16 |
|---|---|
| Average (50%) | April 25 |
| Late (90%) | May 11 |
First fall frost
| Early (10%) | October 9 |
|---|---|
| Average (50%) | October 15 |
| Late (90% chance before) | October 24 |