Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 93532 — Lake Hughes, CA

ZIP code 93532 (Lake Hughes, Los Angeles County) is in USDA zone 9a: the coldest winter night averages 20 to 25 °F. The median last spring frost is April 6 and the first fall frost November 29.

Where ZIP 93532 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.

Zone9a20 to 25 °F

Coldest night−6.7 to −3.9 °C

Last frostApr 6

First frostNov 29

2012 zone9b

Was 9b on the 2012 map — half a zone colder now. The zone is the one at the center of the ZIP code; hilly ZIPs can span two zones. What zone 9a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Lake Hughes, 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 Lake Hughes, CA

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostApril 6median — 50% chance of a later frost

Safe for tender plantsMay 20only 10% chance of frost after

First fall frostNovember 29median — 10% chance by Nov 5

Growing season236 daysfrost-free, median

A hard freeze (28 °F) usually ends around February 25 and returns around December 10.

From the NOAA station Fairmont, CA — 6 miles away, elevation 3,061 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 93532

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 23 – Mar 9

SpinachSow outdoors · Feb 23 – Mar 16

Broccoli, cabbageStart indoors · Jan 26 – Feb 9

Broccoli, cabbageTransplant · Mar 16 – Mar 30

Onion setsPlant outdoors · Mar 9 – Mar 23

PotatoesPlant outdoors · Mar 16 – Mar 30

LettuceSow outdoors · Mar 9 – Mar 23

Carrots, beetsSow outdoors · Mar 16 – Mar 30

TomatoesStart indoors · Feb 9 – Feb 23

TomatoesTransplant · Apr 13 – Apr 27

Peppers, eggplantStart indoors · Jan 26 – Feb 9

Peppers, eggplantTransplant · Apr 20 – May 4

BeansSow outdoors · Apr 13 – Apr 27

Sweet cornSow outdoors · Apr 13 – Apr 27

Cucumbers, squashSow outdoors · Apr 13 – Apr 27

Fall lettuce, spinachSow outdoors · Oct 4 – Oct 18

GarlicPlant cloves · Nov 15 – Dec 20

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 6) and first fall frost (Nov 29) 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 93532 came on Feb 3 — 9 days earlier than the 1991–2020 average (Feb 12).

average
Feb 122026
Feb 3

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 Lake Hughes, CA

The soil mapped at the center of ZIP 93532 is Tollhouse family — gravelly sandy loam, somewhat excessively drained.

TextureGravelly sandy loamdrains and warms fast; dries out and needs more feeding

pH7.0neutral; most vegetables like 6.0–7.0

DrainageSomewhat excessively drainednatural drainage class

Organic matter1%low — add compost

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Tollhouse-Knutsen-Stukel families complex, 30 to 70 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 93532; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Lake Hughes, CA

Summer high93 °Faverage high, August

Winter low37 °Faverage low, December

Hot days74days a year at 90 °F or more

Freezing nights24nights a year at 32 °F or less

Growing degree days4,970base 50 °F — the season’s usable heat

Longest day14 h 29 mindaylight on June 21

Shortest day9 h 50 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

Snowfall1 inper year

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Fairmont, CA (6 mi away); precipitation: Fairmont, CA (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

913909b

Santa Clarita, CA · 8 mi

Santa Clarita, CA · 18 mi

California planting zones →

Questions about 93532

What planting zone is ZIP code 93532?

ZIP code 93532 (Lake Hughes, CA) is in USDA hardiness zone 9a on the 2023 map: the coldest night of an average winter reaches 20 to 25 °F (−6.7 to −3.9 °C).

When is the last frost in Lake Hughes, CA?

The median last spring frost (32 °F) near 93532 is April 6; after May 20 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Fairmont station.

When is the first frost in Lake Hughes, CA?

The median first fall frost near 93532 is November 29, giving a median frost-free growing season of 236 days.

When should I plant tomatoes in 93532?

Start tomato seeds indoors around Feb 9 – Feb 23 and set transplants outside around Apr 13 – Apr 27, one to three weeks after the median last frost.

How much rain and snow does 93532 get?

About 15.8 inches of precipitation a year and 1 inches of snowfall (NOAA 1991–2020 normals, Fairmont station).

How hot do summers get in Lake Hughes, CA?

The average high peaks at 93 °F in August, with about 74 days a year at 90 °F or more.

What kind of soil does 93532 have?

The USDA soil survey maps Tollhouse family at the center of ZIP 93532: gravelly sandy loam, somewhat excessively drained, pH about 7.0 (neutral).

Did spring come early in Lake Hughes, CA in 2026?

Spring leaf-out near 93532 came on Feb 3 in 2026, 9 days earlier than the 1991–2020 average (Feb 12), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Lake Hughes, CA?

Intermediate onions: the longest day near 93532 is 14 h 29 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 93532 change?

Yes. The 2012 USDA map put 93532 in zone 9b; the 2023 map puts it in zone 9a. The newer map uses 1991–2020 data and more weather stations.