When to plant in Commerce, CA
USDA Zone 10bCommerce, California frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
With only about -2 frost-free days, Commerce has a short season — start heat-lovers indoors early, favor quick-maturing varieties, and use row cover to stretch both ends. Zone 10b is warm enough that Commerce can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
Frost probability
SAN GABRIEL FIRE DEPT · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Commerce’s own odds, recorded at SAN GABRIEL FIRE DEPT.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Feb 20 | Jan 17 | Dec 20 | Dec 6 | Dec 26 | Jan 30 |
| 32°F | Jan 28 | Jan 4 | Dec 19 | Dec 18 | Jan 2 | Jan 26 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.
Full-year planting calendar
Each bar is the exact window to take a planting action in Commerce, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 27 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Commerce planting FAQ
When is the last spring frost in Commerce, CA?
On average, the last spring frost in Commerce is around January 4 (50% probability at 32°F, from 1991–2020 NOAA normals). Wait until after this date to set out tender plants like tomatoes and peppers.
When is the first fall frost in Commerce, CA?
Expect Commerce's first fall frost near January 2 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Commerce in?
Commerce is in USDA hardiness zone 10b. In zone 10b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Commerce?
There are roughly -2 frost-free days in Commerce (a short growing season), running from the average last frost around January 4 to the first fall frost near January 2.
When should I plant tomatoes in Commerce?
In Commerce, start tomato seeds indoors around November 9–November 23, then transplant seedlings outdoors around January 11 once the danger of frost has passed.
Never miss a window in Commerce
An email when it’s time to start seeds, transplant, and sow — timed to Commerce’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Bell · 3 km
- Bell Gardens · 3 km
- Maywood · 4 km
- Montebello · 4 km
- East Los Angeles · 4 km
- Cudahy · 5 km
- Pico Rivera · 6 km
- Monterey Park · 6 km
Frost dates recorded at SAN GABRIEL FIRE DEPT, 11 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Commerce, CA — Frost Dates & Zone 10b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00047785. Retrieved from https://blissgarden.com/california/commerce.