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

Planting zone for Henderson, NV

Henderson, NV is in USDA zones 9a to 9b across its 12 ZIP codes. The median last spring frost is January 21 and the first fall frost December 17.

Henderson on the zone map

Outlined: its 8 ZIP code areas · 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.

Zones9a–9b20 to 30 °F
ZIP codes12
Last frostJan 21
First frostDec 17
Growing season328 days

9a 2 ZIPs   9b 10 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

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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 Henderson, NV

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostJanuary 21median — 50% chance of a later frost
Safe for tender plantsMarch 5only 10% chance of frost after
First fall frostDecember 17median — 10% chance by Dec 2
Growing season328 daysfrost-free, median

A hard freeze (28 °F) usually ends around January 10 and returns around December 30.

From the NOAA station Alan Bible Visitor Center, NV, elevation 1,641 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 Henderson

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Dec 10 – Dec 24
SpinachSow outdoors · Dec 10 – Dec 31
Broccoli, cabbageStart indoors · Nov 12 – Nov 26
Broccoli, cabbageTransplant · Dec 31 – Jan 14
Onion setsPlant outdoors · Dec 24 – Jan 7
PotatoesPlant outdoors · Dec 31 – Jan 14
LettuceSow outdoors · Dec 24 – Jan 7
Carrots, beetsSow outdoors · Dec 31 – Jan 14
TomatoesStart indoors · Nov 26 – Dec 10
TomatoesTransplant · Jan 28 – Feb 11
Peppers, eggplantStart indoors · Nov 12 – Nov 26
Peppers, eggplantTransplant · Feb 4 – Feb 18
BeansSow outdoors · Jan 28 – Feb 11
Sweet cornSow outdoors · Jan 28 – Feb 11
Cucumbers, squashSow outdoors · Jan 28 – Feb 11
Fall lettuce, spinachSow outdoors · Oct 22 – Nov 5
GarlicPlant cloves · Dec 3 – Jan 7
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jan 21) and first fall frost (Dec 17) 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 89012 came on Jan 27 — 5 days earlier than the 1991–2020 average (Feb 1).

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).

Native plants for zone 9a in Nevada

541 plants native to the lower 48 states, recorded in Nevada, and rated by the USDA to survive 20 °F or colder — the bottom of zone 9a. Each links to its USDA PLANTS profile.

Trees 29

Arizona cypress50 ft · blooms spring · low shade tolerance · to −23 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fboxelder60 ft · blooms early spring · low shade tolerance · to −46 °FCalifornia red fir150 ft · blooms late spring · low shade tolerance · to −23 °FDouglas-fir200 ft · blooms mid spring · medium shade tolerance · to −33 °F

Shrubs 111

alderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °Falpine laurel1 ft · blooms late spring · low shade tolerance · to −28 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °FApache plume6 ft · blooms late spring · high shade tolerance · to −23 °Fbig sagebrush4 ft · blooms mid summer · high shade tolerance · to −43 °Fbig saltbush10 ft · blooms early summer · high shade tolerance · to 7 °F

Wildflowers & perennials 255

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °FAmerican alpine speedwell1 ft · blooms summer · medium shade tolerance · to −28 °FAmerican bistort1.5 ft · blooms mid spring · high shade tolerance · to −38 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °F

Grasses 136

Alaska oniongrass3 ft · blooms mid spring · low shade tolerance · to −33 °Falkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °Falpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °Fanalogue sedge1.5 ft · blooms late spring · medium shade tolerance · to −38 °Farctic bluegrass2 ft · high shade tolerance · to −62 °F

Vines 1

western white clematis1 ft · blooms mid summer · medium shade tolerance · to −38 °F

Source: USDA, NRCS. 2026. The PLANTS Database (plants.usda.gov), National Plant Data Team — state distribution, native status and the “Temperature, Minimum” characteristic. Check light, moisture and soil needs before buying; local nurseries and your state native plant society can confirm what thrives in Henderson, NV.

Soil in Henderson, NV

The soil mapped at the center of ZIP 89012 is Caliza — extremely stony fine sandy loam, well drained.

TextureExtremely stony fine sandy loamdrains and warms fast; dries out and needs more feeding
pH8.2alkaline; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Caliza-Pittman extremely stony fine sandy loams, 2 to 8 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 89012; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Henderson, NV

Summer high105 °Faverage high, July
Winter low40 °Faverage low, December
Hot days137days a year at 90 °F or more
Freezing nights10nights a year at 32 °F or less
Growing degree days7,587base 50 °F — the season’s usable heat
Longest day14 h 36 mindaylight on June 21
Shortest day9 h 43 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation6.9 inper year, rain and melted snow

Average high and low, by month

30°40°50°60°70°80°90°100°110°120°32 °FJanuary: average high 59 °F, low 41 °F 59°41° JanFebruary: average high 63 °F, low 44 °F 63°44° FebMarch: average high 71 °F, low 51 °F 71°51° MarApril: average high 79 °F, low 57 °F 79°57° AprMay: average high 89 °F, low 66 °F 89°66° MayJune: average high 99 °F, low 76 °F 99°76° JunJuly: average high 105 °F, low 82 °F 105°82° JulAugust: average high 103 °F, low 81 °F 103°81° AugSeptember: average high 95 °F, low 72 °F 95°72° SepOctober: average high 81 °F, low 60 °F 81°60° OctNovember: average high 67 °F, low 47 °F 67°47° NovDecember: average high 57 °F, low 40 °F 57°40° Dec

Precipitation by month inches

0″1″2″January: 0.65 in precipitation 0.7 JanFebruary: 1.12 in precipitation 1.1 FebMarch: 0.75 in precipitation 0.8 MarApril: 0.35 in precipitation 0.3 AprMay: 0.23 in precipitation 0.2 MayJune: 0.08 in precipitation 0.1 JunJuly: 0.75 in precipitation 0.8 JulAugust: 0.93 in precipitation 0.9 AugSeptember: 0.50 in precipitation 0.5 SepOctober: 0.61 in precipitation 0.6 OctNovember: 0.36 in precipitation 0.4 NovDecember: 0.53 in precipitation 0.5 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Las Vegas Mccarran Airport, NV (8 mi away); precipitation: Henderson 9.8 Sw, NV (7 mi away). Daylight is calculated from latitude.

ZIP codes in Henderson

890029b
25 to 30 °F
890099b
25 to 30 °F
890119b
25 to 30 °F
890129b
25 to 30 °F
890149b
25 to 30 °F
890159b
25 to 30 °F
890169b
25 to 30 °F
890449a
20 to 25 °F
890529a
20 to 25 °F
890539b
25 to 30 °F
890749b
25 to 30 °F
890779b
25 to 30 °F

Nevada planting zones →

Questions about Henderson

What planting zone is Henderson, NV?

Henderson, NV is in USDA hardiness zones 9a to 9b on the 2023 map (9a: 20 to 25 °F; 9b: 25 to 30 °F).

When is the last frost in Henderson, NV?

The median last spring frost is January 21 and the median first fall frost is December 17 (NOAA 1991–2020 normals, Alan Bible Visitor Center station).

When can I plant a garden in Henderson, NV?

Cool-season crops like peas and spinach go in around Dec 10 – Dec 31; tomatoes, peppers, beans and squash after about Jan 28, once frost risk has passed.

What kind of onions grow in Henderson, NV?

Intermediate onions: the longest day is 14 h 36 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

How much rain and snow does Henderson, NV get?

About 6.9 inches of precipitation a year (NOAA 1991–2020 normals).