Frost dates in Portales, NM
The average last spring frost in Portales is around April 19 and the first fall frost is around October 20. That gives Portales an average growing season of about 184 days.
Last spring frost
| Early (10% chance after) | April 4 |
|---|---|
| Average (50%) | April 19 |
| Late (90%) | May 6 |
First fall frost
| Early (10%) | October 5 |
|---|---|
| Average (50%) | October 20 |
| Late (90% chance before) | November 2 |