Frost dates in Bartlesville, OK
The average last spring frost in Bartlesville is around April 7 and the first fall frost is around October 28. That gives Bartlesville an average growing season of about 204 days.
Last spring frost
| Early (10% chance after) | March 11 |
|---|---|
| Average (50%) | April 7 |
| Late (90%) | April 25 |
First fall frost
| Early (10%) | October 17 |
|---|---|
| Average (50%) | October 28 |
| Late (90% chance before) | November 6 |