Frost dates in Basin, WY
The average last spring frost in Basin is around May 10 and the first fall frost is around September 23. That gives Basin an average growing season of about 136 days.
Last spring frost
| Early (10% chance after) | April 24 |
|---|---|
| Average (50%) | May 10 |
| Late (90%) | May 27 |
First fall frost
| Early (10%) | September 11 |
|---|---|
| Average (50%) | September 23 |
| Late (90% chance before) | October 11 |