Frost dates in Altamont, UT
The average last spring frost in Altamont is around May 30 and the first fall frost is around September 22. That gives Altamont an average growing season of about 115 days.
Last spring frost
| Early (10% chance after) | May 13 |
|---|---|
| Average (50%) | May 30 |
| Late (90%) | June 21 |
First fall frost
| Early (10%) | September 4 |
|---|---|
| Average (50%) | September 22 |
| Late (90% chance before) | October 9 |