Frost dates in Altamont, MO
The average last spring frost in Altamont is around April 15 and the first fall frost is around October 21. That gives Altamont an average growing season of about 189 days.
Last spring frost
| Early (10% chance after) | April 1 |
|---|---|
| Average (50%) | April 15 |
| Late (90%) | May 2 |
First fall frost
| Early (10%) | October 8 |
|---|---|
| Average (50%) | October 21 |
| Late (90% chance before) | November 3 |