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

Planting zone for 90026 — Los Angeles, CA

ZIP code 90026 (Los Angeles, Los Angeles County) is in USDA zone 10b: the coldest winter night averages 35 to 40 °F.

Where ZIP 90026 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 frostrare
First frostrare
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

A 32 °F frost doesn't happen here in most winters. At the nearest station (NOAA station Pasadena, CA — 8 miles away, elevation 863 ft) the median growing season is 365 days. When frost does come, it is a midwinter night or two; cover tender plants when a freeze is forecast.

Frost data: NOAA NCEI U.S. Climate Normals 1991–2020.

When spring arrived in 2026

In 2026, spring leaf-out near 90026 came on Jan 17 — 3 days earlier than the 1991–2020 average (Jan 20).

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 90026 is Dapplegray — loam, well drained. Much of the area is built over (urban land); this is the natural soil underneath.

TextureLoama good balance for most vegetables
pH7.8slightly alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter1.5%low — add compost
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Urban land-Dapplegray complex, 5 to 20 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 90026; 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 high84 °Faverage high, August
Winter low48 °Faverage low, December
Hot days26days a year at 90 °F or more
Freezing nights0nights a year at 32 °F or less
Growing degree days5,770base 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
Precipitation15.8 inper year, rain and melted snow

Average high and low, by month

40°50°60°70°80°90°January: average high 68 °F, low 49 °F 68°49° JanFebruary: average high 68 °F, low 50 °F 68°50° FebMarch: average high 70 °F, low 52 °F 70°52° MarApril: average high 72 °F, low 55 °F 72°55° AprMay: average high 74 °F, low 58 °F 74°58° MayJune: average high 77 °F, low 61 °F 77°61° JunJuly: average high 82 °F, low 65 °F 82°65° JulAugust: average high 84 °F, low 65 °F 84°65° AugSeptember: average high 83 °F, low 64 °F 83°64° SepOctober: average high 79 °F, low 60 °F 79°60° OctNovember: average high 73 °F, low 53 °F 73°53° NovDecember: average high 67 °F, low 48 °F 67°48° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 3.17 in precipitation 3.2 JanFebruary: 4.59 in precipitation 4.6 FebMarch: 2.49 in precipitation 2.5 MarApril: 0.85 in precipitation 0.8 AprMay: 0.39 in precipitation 0.4 MayJune: 0.13 in precipitation 0.1 JunJuly: 0.03 in precipitation 0.0 JulAugust: 0.01 in precipitation 0.0 AugSeptember: 0.15 in precipitation 0.1 SepOctober: 0.70 in precipitation 0.7 OctNovember: 0.89 in precipitation 0.9 NovDecember: 2.44 in precipitation 2.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Los Angeles Dwtn Usc Campus, CA (2 mi away); precipitation: Los Angeles 2.6 Nw, CA (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 10b.

9009010b
Dodgertown, CA · 1 mi
9005710b
Los Angeles, CA · 1 mi
9001210b
Los Angeles, CA · 2 mi
9001710b
Los Angeles, CA · 2 mi
9002910b
Los Angeles, CA · 2 mi
9018910b
Los Angeles, CA · 2 mi
9000910b
Los Angeles, CA · 2 mi
9003010b
Los Angeles, CA · 2 mi

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

Questions about 90026

What planting zone is ZIP code 90026?

ZIP code 90026 (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).

How much rain and snow does 90026 get?

About 15.8 inches of precipitation a year (NOAA 1991–2020 normals, Los Angeles 2.6 Nw station).

How hot do summers get in Los Angeles, CA?

The average high peaks at 84 °F in August, with about 26 days a year at 90 °F or more.

What kind of soil does 90026 have?

The USDA soil survey maps Dapplegray at the center of ZIP 90026: loam, well drained, pH about 7.8 (slightly alkaline).

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

Spring leaf-out near 90026 came on Jan 17 in 2026, 3 days earlier than the 1991–2020 average (Jan 20), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Los Angeles, CA?

Intermediate onions: the longest day near 90026 is 14 h 26 min, so day-neutral types bulb best; long-day varieties may not bulb fully.