Frost dates in Gretna, NE
The average last spring frost in Gretna is around April 18 and the first fall frost is around October 20. That gives Gretna an average growing season of about 185 days.
Last spring frost
| Early (10% chance after) | April 9 |
|---|---|
| Average (50%) | April 18 |
| Late (90%) | May 4 |
First fall frost
| Early (10%) | October 7 |
|---|---|
| Average (50%) | October 20 |
| Late (90% chance before) | October 30 |