Frost dates for Oceanside, California
In a typical year, Oceanside’s last spring frost lands around Jan 23 and the first fall frost around Dec 11, a growing season of about 322 days. These are odds drawn from 30-year NOAA climate normals, not a promise. USDA zone 10a.
Right now the growing season is open, with about 47 days until the typical first fall frost.
| Odds | Last spring frost | First fall frost |
|---|---|---|
| 10 percent | Dec 22 | Nov 21 |
| 50 percent | Jan 23 | Dec 11 |
| 90 percent | Feb 22 | Jan 15 |
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 Oceanside is typically around 62°F at 4 inches this time of year, estimated from the last two weeks of normal air temperatures.
Plantable now in Oceanside
- Cauliflower (Snow Crown)
- Arugula (Astro)
- Broccoli (Green Magic)
- Mustard greens (Red Giant)
- Cabbage (Red Acre)
- Bok choy (Toy Choi)
- Tatsoi (Tatsoi)
Timing comes from the same temperature engine the app uses, run against Oceanside’s normals for today.
Common questions
When is the last frost in Oceanside, California?
Oceanside’s last spring frost falls around January 23 in a typical year. One year in ten it is done by December 22, and one year in ten frost holds on until February 22. Frost-sensitive planting usually waits for the late side of that band.
When is the first fall frost in Oceanside?
The first fall frost arrives around December 11 in a typical year, as early as November 21 in an early year and as late as January 15 in a late one.
How long is the growing season in Oceanside?
About 322 days, counted between the typical last spring frost and the typical first fall frost.
What USDA zone is Oceanside in?
Oceanside is in USDA hardiness zone 10a under the 2023 USDA Plant Hardiness Zone Map.
Dates come from 30-year NOAA climate normals for the nearest reporting station. They describe odds, not a forecast.
Nearby cities
- Escondido, CA (around Jan 2 to Dec 30)
- San Diego, CA (around Jan 6 to Dec 31)
- Irvine, CA (around Jan 5 to Dec 25)
- Chula Vista, CA (around Jan 6 to Dec 31)
- Santa Ana, CA (around Jan 5 to Dec 25)
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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