Frost dates in Fort Calhoun, NE
The average last spring frost in Fort Calhoun is around April 18 and the first fall frost is around October 19. That gives Fort Calhoun an average growing season of about 184 days.
Last spring frost
| Early (10% chance after) | April 10 |
|---|---|
| Average (50%) | April 18 |
| Late (90%) | May 2 |
First fall frost
| Early (10%) | October 7 |
|---|---|
| Average (50%) | October 19 |
| Late (90% chance before) | November 1 |