When to plant in Yorba Linda, CA
USDA Zone 10aEverything below — frost dates, hardiness zone, and what to plant when in Yorba Linda, California — is derived from the closest NOAA station with complete climate normals.
With about 336 frost-free days, Yorba Linda supports back-to-back plantings; stagger sowings every few weeks to keep beds productive spring through fall. Heads up: the nearest complete-normals station is about 16 km from Yorba Linda, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. Zone 10a is warm enough that Yorba Linda can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.
The average last spring frost in Yorba Linda is now 19 days earlier than in the 1981–2010 normals. See how frost dates are shifting nationwide →
Frost probability
CHINO AP · 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 Yorba Linda’s own odds, recorded at CHINO AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Mar 29 | Feb 24 | Jan 21 | Nov 12 | Dec 1 | Dec 18 |
| 32°F | Feb 22 | Jan 17 | Dec 18 | Nov 27 | Dec 19 | Jan 17 |
| 28°F | Jan 28 | Jan 3 | Dec 11 | Dec 7 | Dec 30 | Jan 23 |
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 Yorba Linda, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 21 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.
Yorba Linda planting FAQ
When is the last spring frost in Yorba Linda, CA?
Plan for the last spring frost in Yorba Linda around January 17 (the date it has a 50% chance of a 32°F freeze). Anything frost-sensitive should go out after it.
When is the first fall frost in Yorba Linda, CA?
Expect Yorba Linda's first fall frost near December 19 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.
What hardiness zone is Yorba Linda in?
Yorba Linda is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.
How long is the growing season in Yorba Linda?
There are roughly 336 frost-free days in Yorba Linda (a long growing season), running from the average last frost around January 17 to the first fall frost near December 19.
When should I plant tomatoes in Yorba Linda?
In Yorba Linda, start tomato seeds indoors around November 22–December 6, then transplant seedlings outdoors around January 24 once the danger of frost has passed.
Never miss a window in Yorba Linda
An email when it’s time to start seeds, transplant, and sow — timed to Yorba Linda’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Anaheim · 4 km
- Chino Hills · 7 km
- Placentia · 8 km
- Brea · 9 km
- Diamond Bar · 13 km
- Chino · 14 km
- North Tustin · 14 km
- Orange · 14 km
Frost dates recorded at CHINO AP, 16 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 Yorba Linda, CA — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00003179. Retrieved from https://blissgarden.com/california/yorba-linda.