Frost dates in Winchester, OK
The average last spring frost in Winchester is around April 2 and the first fall frost is around October 29. That gives Winchester an average growing season of about 210 days.
Last spring frost
| Early (10% chance after) | March 14 |
|---|---|
| Average (50%) | April 2 |
| Late (90%) | April 17 |
First fall frost
| Early (10%) | October 11 |
|---|---|
| Average (50%) | October 29 |
| Late (90% chance before) | November 15 |