When to plant in Temecula, CA
USDA Zone 9bTemecula, California frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.
A ~-3-day frost-free window makes Temecula a short-season garden: choose early varieties and start long-season crops indoors well ahead of the last frost. In zone 9b, frost is a minor factor for Temecula — most perennials thrive, and annual vegetables can go out early and stay late.
Frost probability
FALLBROOK 5 NE · 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 Temecula’s own odds, recorded at FALLBROOK 5 NE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 6 | Feb 7 | Dec 21 | Dec 11 | Jan 1 | Feb 17 |
| 32°F | Feb 24 | Feb 2 | Dec 26 | Dec 23 | Jan 30 | Feb 24 |
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 Temecula, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 30 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.
Temecula planting FAQ
When is the last spring frost in Temecula, CA?
Temecula's average last spring frost falls near February 2 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Temecula, CA?
In Temecula, the first 32°F freeze of fall lands around January 30 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Temecula in?
Temecula is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Temecula?
Temecula has about -3 frost-free days — a short growing season — between the average last spring frost (February 2) and first fall frost (January 30).
When should I plant tomatoes in Temecula?
For Temecula, sow tomatoes indoors about December 8–December 22 and move the seedlings out around February 9, after the last spring frost.
Never miss a window in Temecula
An email when it’s time to start seeds, transplant, and sow — timed to Temecula’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Murrieta · 10 km
- French Valley · 12 km
- Fallbrook · 16 km
- Wildomar · 18 km
- Menifee · 22 km
- Canyon Lake · 25 km
- Lakeland Village · 28 km
- Lake Elsinore · 29 km
Frost dates recorded at FALLBROOK 5 NE, 8 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 Temecula, CA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00053151. Retrieved from https://blissgarden.com/california/temecula.