Frost dates in Jefferson County, Oregon
The average last spring frost in Jefferson County falls May 15 to May 22 and the average first fall frost Sep 30 to Oct 4, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b to 7a. Places: Camp Sherman, Culver, Madras. 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 |
|---|---|---|---|---|
| 97711 | May 22 | Oct 3 | 7a | |
| 97730 | Camp Sherman | May 15 | Sep 30 | 6b |
| 97734 | Culver | May 19 | Oct 4 | 7a |
| 97741 | Madras | May 19 | Oct 4 | 7a |
Nearby counties
Deschutes County Wasco County Crook County Wheeler County Sherman County Hood River County
All Oregon counties · Download Oregon frost dates (CSV)
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