Frost dates in Sierra County, California
The average last spring frost in Sierra County falls Apr 28 to Jun 11 and the average first fall frost Sep 10 to Oct 30, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6b to 9a. Places: Alleghany, Downieville, Goodyears Bar, Pike, Sattley, Sierra Brooks. 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 |
|---|---|---|---|---|
| 95910 | Alleghany | Apr 28 | Oct 25 | 8b |
| 95936 | Downieville | Apr 28 | Oct 25 | 8a |
| 95944 | Goodyears Bar | Apr 28 | Oct 25 | 8b |
| 95960 | Pike | May 4 | Oct 30 | 9a |
| 96118 | Sierra Brooks | Jun 11 | Sep 10 | 6b |
| 96124 | Sattley | Jun 11 | Sep 10 | 6b |
| 96125 | Sierra City | May 12 | Oct 29 | 7a |
| 96126 | Sierraville | May 12 | Oct 29 | 6b |
Nearby counties
Nevada County Plumas County Placer County Yuba County Butte County El Dorado County
All California counties · Download California frost dates (CSV)
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