Frost dates in Alma, CO
The average last spring frost in Alma is around June 20 and the first fall frost is around September 9. That gives Alma an average growing season of about 81 days.
Last spring frost
| Early (10% chance after) | May 30 |
|---|---|
| Average (50%) | June 20 |
| Late (90%) | July 23 |
First fall frost
| Early (10%) | August 4 |
|---|---|
| Average (50%) | September 9 |
| Late (90% chance before) | September 19 |