Frost dates in Evanston, WY
The average last spring frost in Evanston is around June 24 and the first fall frost is around September 2. That gives Evanston an average growing season of about 70 days.
Last spring frost
| Early (10% chance after) | May 30 |
|---|---|
| Average (50%) | June 24 |
| Late (90%) | July 18 |
First fall frost
| Early (10%) | August 16 |
|---|---|
| Average (50%) | September 2 |
| Late (90% chance before) | September 19 |