Frost dates in Twin Valley, MN
The average last spring frost in Twin Valley is around May 15 and the first fall frost is around September 23. That gives Twin Valley an average growing season of about 131 days.
Last spring frost
| Early (10% chance after) | April 27 |
|---|---|
| Average (50%) | May 15 |
| Late (90%) | June 4 |
First fall frost
| Early (10%) | September 10 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 8 |