Frost dates in Lamar, CO
The average last spring frost in Lamar is around April 30 and the first fall frost is around October 9. That gives Lamar an average growing season of about 162 days.
Last spring frost
| Early (10% chance after) | April 14 |
|---|---|
| Average (50%) | April 30 |
| Late (90%) | May 14 |
First fall frost
| Early (10%) | September 25 |
|---|---|
| Average (50%) | October 9 |
| Late (90% chance before) | October 22 |