Frost dates in Bruno, MN
The average last spring frost in Bruno is around May 22 and the first fall frost is around September 21. That gives Bruno an average growing season of about 122 days.
Last spring frost
| Early (10% chance after) | May 11 |
|---|---|
| Average (50%) | May 22 |
| Late (90%) | June 5 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 21 |
| Late (90% chance before) | October 10 |