Frost dates in Alameda County, California
The average last spring frost in Alameda County falls Jan 1 to May 3 and the average first fall frost Nov 18 to Jan 1 (next year), depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 10a to 9b. Places: Alameda, Albany, Berkeley, Castro Valley, Dublin, Fremont. 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 |
|---|---|---|---|---|
| 94501 | Alameda | Jan 7 | Dec 23 | 10a |
| 94502 | Alameda | Jan 7 | Dec 23 | 10a |
| 94536 | Fremont | Jan 7 | Dec 22 | 9b |
| 94538 | Fremont | Jan 1 | Dec 27 | 10a |
| 94539 | Fremont | Jan 7 | Dec 22 | 9b |
| 94541 | Hayward | Jan 2 | Dec 25 | 10a |
| 94542 | Hayward | Jan 2 | Dec 25 | 9b |
| 94544 | Hayward | Jan 2 | Dec 25 | 9b |
| 94545 | Hayward | Jan 2 | Dec 25 | 10a |
| 94546 | Castro Valley | Jan 2 | Dec 25 | 9b |
| 94550 | Livermore | May 3 | Nov 18 | 9b |
| 94551 | Livermore | Feb 15 | Dec 2 | 9b |
| 94552 | Castro Valley | Jan 2 | Dec 25 | 9b |
| 94555 | Fremont | Jan 1 | Dec 27 | 10a |
| 94560 | Newark | Jan 1 | Dec 27 | 10a |
| 94566 | Pleasanton | Feb 15 | Dec 2 | 9b |
| 94568 | Dublin | Feb 15 | Dec 2 | 9b |
| 94577 | San Leandro | Jan 7 | Dec 23 | 10a |
| 94578 | San Leandro | Jan 2 | Dec 25 | 10a |
| 94579 | San Leandro | Jan 2 | Dec 25 | 10a |
| 94580 | San Lorenzo | Jan 2 | Dec 25 | 10a |
| 94586 | Sunol | Feb 15 | Dec 2 | 9b |
| 94587 | Union City | Jan 7 | Dec 22 | 10a |
| 94588 | Pleasanton | Mar 8 | Dec 22 | 9b |
| 94601 | Oakland | Jan 7 | Dec 23 | 10a |
| 94602 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94603 | Oakland | Jan 7 | Dec 23 | 10a |
| 94605 | Oakland | Jan 7 | Dec 23 | 9b |
| 94606 | Oakland | Jan 7 | Dec 23 | 10a |
| 94607 | Oakland | Jan 3 | Jan 1 (next year) | 10b |
| 94608 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94609 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94610 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94611 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94612 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94613 | Oakland | Jan 7 | Dec 23 | 10a |
| 94618 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94619 | Oakland | Jan 7 | Dec 23 | 10a |
| 94621 | Oakland | Jan 7 | Dec 23 | 10a |
| 94702 | Berkeley | Jan 3 | Jan 1 (next year) | 10a |
| 94703 | Berkeley | Jan 3 | Jan 1 (next year) | 10a |
| 94704 | Berkeley | Jan 3 | Jan 1 (next year) | 10a |
| 94705 | Oakland | Jan 3 | Jan 1 (next year) | 10a |
| 94706 | Albany | Jan 3 | Jan 1 (next year) | 10a |
| 94707 | Berkeley | Jan 3 | Jan 1 (next year) | 10a |
| 94709 | Berkeley | Jan 3 | Jan 1 (next year) | 10a |
| 94710 | Berkeley | Jan 3 | Jan 1 (next year) | 10a |
| 94720 | Berkeley | Jan 3 | Jan 1 (next year) | 10a |
| 95391 | Mountain House | Jan 19 | Dec 10 | 9b |
Nearby counties
Contra Costa County San Francisco County San Mateo County Santa Clara County Solano County Marin County
All California counties · Download California frost dates (CSV)
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