Frost dates in Brainerd, MN
The average last spring frost in Brainerd is around May 10 and the first fall frost is around September 23. That gives Brainerd an average growing season of about 136 days.
Last spring frost
| Early (10% chance after) | April 25 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 21 |
First fall frost
| Early (10%) | September 12 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 9 |