Frost dates for Fairfield, California
In a typical year, Fairfield’s last spring frost lands around Jan 15 and the first fall frost around Dec 14, a growing season of about 333 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 9b.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Dec 22 | Nov 29 |
| 50 percent | Jan 15 | Dec 14 |
| 90 percent | Feb 16 | Jan 9 |
A 10 percent year is an early year, a 90 percent year a late one. Frost-sensitive planting usually waits for the 90 percent side of the last-frost band.
Soil in Fairfield is typically around 72°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Fairfield
- Broccoli (Waltham 29)
- Cabbage (Ruby Perfection)
- Parsley (Hamburg Rooted)
- Radicchio (Rossa di Verona)
- Fava bean (Aquadulce)
- Escarole (Batavian Full Heart)
- Beet (Golden Boy)
- Fennel (Trieste)
Timing comes from the same temperature engine the app uses, run against Fairfield’s normals for today.
Nearby cities
- Vallejo, CA (around Jan 17 to Dec 27)
- Concord, CA (around Jan 9 to Dec 14)
- Richmond, CA (around Jan 4 to Jan 2)
- Berkeley, CA (around Jan 3 to Jan 1)
- Oakland, CA (around Jan 3 to Jan 1)
Row & Bed is a plant reference built around your garden: your zone, your frost dates, your forecast, and a cited page for every variety in your beds.
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