Frost dates in Malheur County, Oregon
The average last spring frost in Malheur County falls Apr 21 to Jun 11 and the average first fall frost Sep 5 to Oct 14, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 7a. Places: Adrian, Brogan, Harper, Jordan Valley, Juntura, Nyssa. 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 |
|---|---|---|---|---|
| 89421 | May 28 | Sep 23 | 7a | |
| 97901 | Adrian | May 7 | Oct 5 | 7a |
| 97902 | Jun 11 | Sep 10 | 6b | |
| 97903 | Brogan | Apr 23 | Oct 13 | 6b |
| 97906 | Harper | Jun 7 | Sep 6 | 6b |
| 97908 | May 7 | Oct 3 | 6a | |
| 97909 | Apr 23 | Oct 13 | 6b | |
| 97910 | Jordan Valley | Jun 11 | Sep 10 | 6b |
| 97911 | Juntura | Jun 5 | Sep 5 | 6a |
| 97913 | Nyssa | May 7 | Oct 5 | 7a |
| 97914 | Ontario | Apr 21 | Oct 14 | 7a |
| 97917 | Jun 7 | Sep 6 | 6a | |
| 97918 | Vale | May 8 | Sep 29 | 7a |
| 97920 | May 7 | Oct 3 | 6a |
Nearby counties
Harney County Baker County Grant County Union County Wallowa County Crook County
All Oregon counties · Download Oregon frost dates (CSV)
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