Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated

Planting zone for 90049 — Los Angeles, CA

ZIP code 90049 (Los Angeles, Los Angeles County) is in USDA zone 10b: the coldest winter night averages 35 to 40 °F. The median last spring frost is January 24 and the first fall frost December 15.

Where ZIP 90049 is

Outlined: the ZIP code area · tap the map for the zone at any spot · scroll or pinch to zoom

Not the official USDA Plant Hardiness Zone Map. Zones come from the 2023 USDA hardiness-zone data by the PRISM Group, Oregon State University; we re-mapped and recolored them. The official map is at planthardiness.ars.usda.gov.

Zone10b35 to 40 °F
Coldest night1.7 to 4.4 °C
Last frostJan 24
First frostDec 15
2012 zone10b

Same zone as on the 2012 map. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 10b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Los Angeles, CA…

Forecast data: National Weather Service (api.weather.gov), public domain. This is not a warning service — for official frost and freeze warnings see weather.gov.

Frost dates in Los Angeles, CA

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostJanuary 24median — 50% chance of a later frost
Safe for tender plantsMarch 5only 10% chance of frost after
First fall frostDecember 15median — 10% chance by Nov 27
Growing season329 daysfrost-free, median

A hard freeze (28 °F) usually ends around December 31 and returns around December 26.

From the NOAA station Woodland Hills Pierce College, CA — 8 miles away, elevation 791 ft. NOAA NCEI U.S. Climate Normals 1991–2020, 32 °F threshold. Low spots and valleys can freeze later in spring than the station.

When to plant vegetables in 90049

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Dec 13 – Dec 27
SpinachSow outdoors · Dec 13 – Jan 3
Broccoli, cabbageStart indoors · Nov 15 – Nov 29
Broccoli, cabbageTransplant · Jan 3 – Jan 17
Onion setsPlant outdoors · Dec 27 – Jan 10
PotatoesPlant outdoors · Jan 3 – Jan 17
LettuceSow outdoors · Dec 27 – Jan 10
Carrots, beetsSow outdoors · Jan 3 – Jan 17
TomatoesStart indoors · Nov 29 – Dec 13
TomatoesTransplant · Jan 31 – Feb 14
Peppers, eggplantStart indoors · Nov 15 – Nov 29
Peppers, eggplantTransplant · Feb 7 – Feb 21
BeansSow outdoors · Jan 31 – Feb 14
Sweet cornSow outdoors · Jan 31 – Feb 14
Cucumbers, squashSow outdoors · Jan 31 – Feb 14
Fall lettuce, spinachSow outdoors · Oct 20 – Nov 3
GarlicPlant cloves · Dec 1 – Jan 5
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jan 24) and first fall frost (Dec 15) with the rules of thumb U.S. extension services publish. Cool-season crops take a light frost; warm-season crops do best once the soil is above about 60 °F.

When spring arrived in 2026

In 2026, spring leaf-out near 90049 came on Jan 17 — about the same time as the 1991–2020 average (Jan 19).

JanFebMarAprMayJun

The Spring Index marks the day when accumulated warmth is enough for lilac and honeysuckle to leaf out — a widely used signal that the growing season has started. Source: USA National Phenology Network, www.usanpn.org — Spring Indices, first leaf, 2026 (data as of 2026-09-08) and 30-year average 1991–2020 (CC BY 4.0).

Soil in Los Angeles, CA

The soil mapped at the center of ZIP 90049 is Mipolomol — channery loam, well drained.

TextureChannery loama good balance for most vegetables
pH6.6neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.5%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Mipolomol-Topanga association, 30 to 75 percent slopes.

Soil Survey Staff, Natural Resources Conservation Service, USDA. Soil Survey Geographic (SSURGO) Database, via Soil Data Access, accessed 2026-10-29. The soil at the center point of ZIP 90049; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Los Angeles, CA

Summer high83 °Faverage high, August
Winter low50 °Faverage low, February
Hot days25days a year at 90 °F or more
Freezing nights0nights a year at 32 °F or less
Growing degree days5,229base 50 °F — the season’s usable heat
Longest day14 h 26 mindaylight on June 21
Shortest day9 h 53 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation18.1 inper year, rain and melted snow

Average high and low, by month

40°50°60°70°80°90°January: average high 66 °F, low 52 °F 66°52° JanFebruary: average high 66 °F, low 50 °F 66°50° FebMarch: average high 68 °F, low 51 °F 68°51° MarApril: average high 70 °F, low 52 °F 70°52° AprMay: average high 73 °F, low 54 °F 73°54° MayJune: average high 75 °F, low 57 °F 75°57° JunJuly: average high 80 °F, low 60 °F 80°60° JulAugust: average high 83 °F, low 62 °F 83°62° AugSeptember: average high 82 °F, low 63 °F 82°63° SepOctober: average high 77 °F, low 59 °F 77°59° OctNovember: average high 72 °F, low 56 °F 72°56° NovDecember: average high 65 °F, low 51 °F 65°51° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 4.56 in precipitation 4.6 JanFebruary: 4.83 in precipitation 4.8 FebMarch: 2.66 in precipitation 2.7 MarApril: 0.74 in precipitation 0.7 AprMay: 0.45 in precipitation 0.5 MayJune: 0.16 in precipitation 0.2 JunJuly: 0.03 in precipitation 0.0 JulAugust: 0.00 in precipitation 0.0 AugSeptember: 0.13 in precipitation 0.1 SepOctober: 0.74 in precipitation 0.7 OctNovember: 0.76 in precipitation 0.8 NovDecember: 3.09 in precipitation 3.1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Getty Center, CA (within 1 mile); precipitation: Getty Center, CA (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

3 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

9007710b
Los Angeles, CA · 2 mi
9027210b
Pacific Palisades, CA · 2 mi
9007310b
Los Angeles, CA · 3 mi
9009510b
Los Angeles, CA · 3 mi
9002410b
Los Angeles, CA · 4 mi
9143610a
Encino, CA · 4 mi
9040211a
Santa Monica, CA · 4 mi
9140310a
Sherman Oaks, CA · 4 mi

All 92 ZIP codes in Los Angeles → · California planting zones →

Questions about 90049

What planting zone is ZIP code 90049?

ZIP code 90049 (Los Angeles, CA) is in USDA hardiness zone 10b on the 2023 map: the coldest night of an average winter reaches 35 to 40 °F (1.7 to 4.4 °C).

When is the last frost in Los Angeles, CA?

The median last spring frost (32 °F) near 90049 is January 24; after March 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Woodland Hills Pierce College station.

When is the first frost in Los Angeles, CA?

The median first fall frost near 90049 is December 15, giving a median frost-free growing season of 329 days.

When should I plant tomatoes in 90049?

Start tomato seeds indoors around Nov 29 – Dec 13 and set transplants outside around Jan 31 – Feb 14, one to three weeks after the median last frost.

How much rain and snow does 90049 get?

About 18.1 inches of precipitation a year (NOAA 1991–2020 normals, Getty Center station).

How hot do summers get in Los Angeles, CA?

The average high peaks at 83 °F in August, with about 25 days a year at 90 °F or more.

What kind of soil does 90049 have?

The USDA soil survey maps Mipolomol at the center of ZIP 90049: channery loam, well drained, pH about 6.6 (neutral).

Did spring come early in Los Angeles, CA in 2026?

Spring leaf-out near 90049 came on Jan 17 in 2026, about the same as the 1991–2020 average (Jan 19), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Los Angeles, CA?

Intermediate onions: the longest day near 90049 is 14 h 26 min, so day-neutral types bulb best; long-day varieties may not bulb fully.