When to plant in Wildomar, CA
USDA Zone 9bEverything below — frost dates, hardiness zone, and what to plant when in Wildomar, California — is derived from the closest NOAA station with complete climate normals.
Wildomar enjoys a long ~324-day frost-free season — you can succession-sow, fit in a second crop, and grow long-season heat-lovers with room to spare. Zone 9b is warm enough that Wildomar can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
Frost probability
ELSINORE · 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 Wildomar’s own odds, recorded at ELSINORE.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 2 | Feb 28 | Jan 29 | Nov 15 | Dec 2 | Dec 18 |
| 32°F | Feb 27 | Jan 28 | Dec 24 | Dec 1 | Dec 18 | Jan 24 |
| 28°F | Feb 9 | Jan 1 | Dec 12 | Dec 9 | Dec 27 | Feb 3 |
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 Wildomar, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 33 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.
Wildomar planting FAQ
When is the last spring frost in Wildomar, CA?
Wildomar's average last spring frost falls near January 28 — 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 Wildomar, CA?
In Wildomar, the first 32°F freeze of fall lands around December 18 on average. Time your last harvests and any season-extension cover before it.
What hardiness zone is Wildomar in?
Wildomar is in USDA hardiness zone 9b. In zone 9b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Wildomar?
There are roughly 324 frost-free days in Wildomar (a long growing season), running from the average last frost around January 28 to the first fall frost near December 18.
When should I plant tomatoes in Wildomar?
In Wildomar, start tomato seeds indoors around December 3–December 17, then transplant seedlings outdoors around February 4 once the danger of frost has passed.
Never miss a window in Wildomar
An email when it’s time to start seeds, transplant, and sow — timed to Wildomar’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Canyon Lake · 8 km
- Murrieta · 8 km
- Lake Elsinore · 10 km
- Menifee · 11 km
- Lakeland Village · 11 km
- French Valley · 14 km
- Temecula · 18 km
- Perris · 19 km
Frost dates recorded at ELSINORE, 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 Wildomar, CA — Frost Dates & Zone 9b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00042805. Retrieved from https://blissgarden.com/california/wildomar.