Frost dates in Trinity County, California
The average last spring frost in Trinity County falls Mar 4 to May 3 and the average first fall frost Oct 11 to Nov 22, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7b to 9a. Places: Burnt Ranch, Coffee Creek, Douglas City, Hayfork, Hyampom, Junction City. 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 |
|---|---|---|---|---|
| 95527 | Burnt Ranch | Apr 16 | Oct 31 | 8b |
| 95552 | Ruth | Mar 4 | Nov 22 | 8b |
| 95563 | Salyer | Apr 16 | Oct 31 | 9a |
| 95595 | Apr 23 | Oct 19 | 8b | |
| 96010 | Apr 27 | Oct 21 | 8b | |
| 96024 | Douglas City | Apr 23 | Oct 22 | 8b |
| 96041 | Hayfork | Apr 16 | Oct 31 | 8b |
| 96046 | Hyampom | Apr 16 | Oct 31 | 8b |
| 96048 | Junction City | May 3 | Oct 11 | 8b |
| 96052 | Lewiston | Apr 23 | Oct 22 | 8b |
| 96076 | Platina | May 3 | Oct 11 | 9a |
| 96091 | Coffee Creek | Apr 27 | Oct 21 | 7b |
| 96093 | Weaverville | May 3 | Oct 11 | 8b |
Nearby counties
Humboldt County Shasta County Tehama County Siskiyou County Glenn County Mendocino County
All California counties · Download California frost dates (CSV)
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