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When to plant in Maywood, CA

USDA Zone 10b

Here are the average frost dates, USDA hardiness zone, and a month-by-month planting calendar for Maywood, California — all computed from Maywood's nearest NOAA weather station.

With only about -2 frost-free days, Maywood 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 Maywood can grow subtropical perennials, and the short (or absent) frost period barely limits the annual calendar.

Station · SAN GABRIEL FIRE DEPT · 13.3 km
Last spring frost
January 4
50% chance · 32°F
First fall frost
January 2
50% chance · 32°F
Growing season
-2 days
frost-free
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Frost calendar for MaywoodA year-band from January to December for Maywood: Maywood is effectively frost-free at 32°F — no distinct frost season.
Maywood is effectively frost-free at 32°F — no distinct frost season.

Frost probability

SAN GABRIEL FIRE DEPT · 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 Maywood’s own odds, recorded at SAN GABRIEL FIRE DEPT.

Frost-probability curves for MaywoodProbability of the last spring frost and first fall frost by date at 32°F. The last spring frost is most likely around January 4 and the first fall frost around January 2, where a 32°F freeze is rare enough that there is effectively no distinct frost season.
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°FFeb 20Jan 17Dec 20Dec 6Dec 26Jan 30
32°FJan 28Jan 4Dec 19Dec 18Jan 2Jan 26

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 Maywood, 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.

SAN GABRIEL FIRE DEPT
Primary
13 km · 111 m elevation
SPRING
Jan 4
FALL
Jan 2
PASADENA
18 km · 263 m elevation
SPRING
Jan 8
FALL
Jan 7
TORRANCE AP
25 km · 27 m elevation
SPRING
Jan 9
FALL
Jan 5

Maywood planting FAQ

When is the last spring frost in Maywood, CA?

Maywood's average last spring frost falls near January 4 — 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 Maywood, CA?

The first fall frost in Maywood typically arrives around January 2 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.

What hardiness zone is Maywood in?

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

How long is the growing season in Maywood?

There are roughly -2 frost-free days in Maywood (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 Maywood?

In Maywood, start tomato seeds indoors around November 9–November 23, then transplant seedlings outdoors around January 11 once the danger of frost has passed.

Planting reminders

Never miss a window in Maywood

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

Nearby cities

8 within reach

Frost dates recorded at SAN GABRIEL FIRE DEPT, 13 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 Maywood, CA — Frost Dates & Zone 10b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USC00047785. Retrieved from https://blissgarden.com/california/maywood.
When to Plant in Maywood, CA — Frost Dates & Zone 10b — BlissGarden