Frost dates in McLean, NE
The average last spring frost in McLean is around May 4 and the first fall frost is around September 29. That gives McLean an average growing season of about 148 days.
Last spring frost
| Early (10% chance after) | April 17 |
|---|---|
| Average (50%) | May 4 |
| Late (90%) | May 15 |
First fall frost
| Early (10%) | September 18 |
|---|---|
| Average (50%) | September 29 |
| Late (90% chance before) | October 14 |