blissgarden.

When to plant in Anaheim, CA

USDA Zone 10a

Anaheim, California frost dates, USDA zone, and a full-year planting calendar, drawn from the nearest NOAA station and tuned to the local season.

With about 354 frost-free days, Anaheim 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 17 km from Anaheim, so your yard's frost dates can differ — a low spot or a paved city center can shift them by a week. In zone 10a, frost is a minor factor for Anaheim — most perennials thrive, and annual vegetables can go out early and stay late.

Station · TUSTIN IRVINE RCH · 17.0 km
Last spring frost
January 5
50% chance · 32°F
First fall frost
December 25
50% chance · 32°F
Growing season
354 days
frost-free
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Frost calendar for AnaheimA year-band showing 32°F frost risk from January to December for Anaheim: last spring frost around January 5, first fall frost around December 25, about 354 frost-free days between.
Shaded months carry frost risk; the clear span is the average frost-free season.

Frost probability

TUSTIN IRVINE RCH · 1991–2020

The 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 Anaheim’s own odds, recorded at TUSTIN IRVINE RCH.

Frost-probability curves for AnaheimProbability of the last spring frost and first fall frost by date at 32°F. The last spring frost is most likely around January 5 and the first fall frost around December 25, giving about 354 frost-free days.
Last spring frostFirst fall frostbold = 32°F · thin = 28°F / 36°F · dot = 50% date · band = 10–90% window
ThresholdSPRING 10%SPRING 50%SPRING 90%FALL 10%FALL 50%FALL 90%
36°FMar 5Feb 1Jan 3Nov 24Dec 13Jan 8
32°FFeb 2Jan 5Dec 14Dec 3Dec 25Jan 20

Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.

What to plant now

TODAY · JULY 19

Nothing new to sow or transplant outdoors in the next few weeks — a seasonal lull. Check the full-year calendar below for the next window.

Add the next planting windows to your calendar (.ics) ↓

Full-year planting calendar

Start indoorsTransplantDirect sowFall sow

Each bar is the exact window to take a planting action in Anaheim, drawn to the day from the local frost dates. The dashed line is today.

Nearby weather stations

3 within 25 km · complete 32°F normals

When 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.

TUSTIN IRVINE RCH
Primary
17 km · 72 m elevation
SPRING
Jan 5
FALL
Dec 25
CHINO AP
17 km · 198 m elevation
SPRING
Jan 17
FALL
Dec 19
POMONA/FAIRPLEX
25 km · 305 m elevation
SPRING
Jan 8
FALL
Dec 28

Anaheim planting FAQ

When is the last spring frost in Anaheim, CA?

Anaheim's average last spring frost falls near January 5 — 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 Anaheim, CA?

Expect Anaheim's first fall frost near December 25 — a 50% chance of 32°F by that date. Bring in or cover tender crops ahead of it.

What hardiness zone is Anaheim in?

Anaheim is in USDA hardiness zone 10a. In zone 10a, winters are mild — many tender perennials overwinter here.

How long is the growing season in Anaheim?

Anaheim has about 354 frost-free days — a long growing season — between the average last spring frost (January 5) and first fall frost (December 25).

When should I plant tomatoes in Anaheim?

For Anaheim, sow tomatoes indoors about November 10–November 24 and move the seedlings out around January 12, after the last spring frost.

Planting reminders

Never miss a window in Anaheim

An email when it’s time to start seeds, transplant, and sow — timed to Anaheim’s frost dates. Double opt-in, one-click unsubscribe, no spam.

Nearby cities

8 within reach

Frost dates recorded at TUSTIN IRVINE RCH, 17 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.

Cite this page
BlissGarden. "When to Plant in Anaheim, CA — Frost Dates & Zone 10a." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00049087. Retrieved from https://blissgarden.com/california/anaheim.