Frost dates in Superior, NE
The average last spring frost in Superior is around April 23 and the first fall frost is around October 10. That gives Superior an average growing season of about 170 days.
Last spring frost
| Early (10% chance after) | March 30 |
|---|---|
| Average (50%) | April 23 |
| Late (90%) | May 10 |
First fall frost
| Early (10%) | September 24 |
|---|---|
| Average (50%) | October 10 |
| Late (90% chance before) | October 28 |