Frost dates in Stillwater, OK
The average last spring frost in Stillwater is around April 8 and the first fall frost is around October 29. That gives Stillwater an average growing season of about 204 days.
Last spring frost
| Early (10% chance after) | March 17 |
|---|---|
| Average (50%) | April 8 |
| Late (90%) | April 20 |
First fall frost
| Early (10%) | October 13 |
|---|---|
| Average (50%) | October 29 |
| Late (90% chance before) | November 16 |