Frost dates in Klamath County, Oregon
The average last spring frost in Klamath County falls May 19 to Jun 9 and the average first fall frost Sep 14 to Oct 3, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 7a. Places: Altamont, Beatty, Beaver Marsh, Bly, Bonanza, Crescent Lake. 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 |
|---|---|---|---|---|
| 97601 | Klamath Falls | Jun 8 | Sep 24 | 7a |
| 97603 | Altamont | Jun 9 | Sep 18 | 6b |
| 97604 | May 19 | Oct 3 | 6b | |
| 97621 | Beatty | May 31 | Sep 21 | 6a |
| 97622 | Bly | May 31 | Sep 21 | 6b |
| 97623 | Bonanza | May 31 | Sep 21 | 6b |
| 97624 | Oregon Shores | Jun 9 | Sep 18 | 6a |
| 97625 | Jun 9 | Sep 18 | 6b | |
| 97626 | Fort Klamath | May 19 | Oct 3 | 6b |
| 97627 | Keno | Jun 5 | Sep 20 | 6b |
| 97632 | Malin | Jun 6 | Sep 14 | 6b |
| 97633 | Merrill | Jun 6 | Sep 14 | 6b |
| 97634 | Jun 9 | Sep 18 | 6b | |
| 97639 | Sprague River | Jun 9 | Sep 18 | 6a |
| 97731 | Beaver Marsh | Jun 1 | Sep 23 | 6a |
| 97733 | Crescent Lake | Jun 1 | Sep 23 | 6b |
| 97737 | Gilchrist | Jun 7 | Sep 18 | 6a |
Nearby counties
Jackson County Lake County Josephine County Douglas County Deschutes County Lane County
All Oregon counties · Download Oregon frost dates (CSV)
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