Frost dates in Washington County, Oklahoma
The average last spring frost in Washington County falls Mar 31 to Apr 12 and the average first fall frost Oct 21 to Nov 4, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a. Places: Bartlesville, Copan, Dewey, Ochelata, Ramona, Vera. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 74006 | Bartlesville | Apr 11 | Oct 24 | 7a |
| 74022 | Copan | Apr 12 | Oct 21 | 7a |
| 74029 | Dewey | Apr 11 | Oct 24 | 7a |
| 74051 | Ochelata | Apr 11 | Oct 24 | 7a |
| 74061 | Ramona | Mar 31 | Oct 31 | 7a |
| 74082 | Vera | Mar 31 | Nov 4 | 7a |
Nearby counties
Nowata County Osage County Rogers County Tulsa County Craig County Pawnee County
All Oklahoma counties · Download Oklahoma frost dates (CSV)
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