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

Planting zone for 89318 — Mc Gill, NV

ZIP code 89318 (Mc Gill, White Pine County) is in USDA zone 6a: the coldest winter night averages −10 to −5 °F. The median last spring frost is May 28 and the first fall frost September 24.

Where ZIP 89318 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.

Zone6a−10 to −5 °F

Coldest night−23.3 to −20.6 °C

Last frostMay 28

First frostSep 24

2012 zone6a

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 6a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Mc Gill, NV…

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 Mc Gill, NV

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 28median — 50% chance of a later frost

Safe for tender plantsJune 13only 10% chance of frost after

First fall frostSeptember 24median — 10% chance by Sep 11

Growing season119 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 11 and returns around October 4.

From the NOAA station Mcgill, NV — 3 miles away, elevation 6,270 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 89318

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Apr 16 – Apr 30

SpinachSow outdoors · Apr 16 – May 7

Broccoli, cabbageStart indoors · Mar 19 – Apr 2

Broccoli, cabbageTransplant · May 7 – May 21

Onion setsPlant outdoors · Apr 30 – May 14

PotatoesPlant outdoors · May 7 – May 21

LettuceSow outdoors · Apr 30 – May 14

Carrots, beetsSow outdoors · May 7 – May 21

TomatoesStart indoors · Apr 2 – Apr 16

TomatoesTransplant · Jun 4 – Jun 18

Peppers, eggplantStart indoors · Mar 19 – Apr 2

Peppers, eggplantTransplant · Jun 11 – Jun 25

BeansSow outdoors · Jun 4 – Jun 18

Sweet cornSow outdoors · Jun 4 – Jun 18

Cucumbers, squashSow outdoors · Jun 4 – Jun 18

Fall lettuce, spinachSow outdoors · Jul 30 – Aug 13

GarlicPlant cloves · Sep 10 – Oct 15

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 28) and first fall frost (Sep 24) 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 89318 came on Mar 18 — 17 days earlier than the 1991–2020 average (Apr 4).

average
Apr 42026
Mar 18

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 6a in Nevada

504 plants native to the lower 48 states, recorded in Nevada, and rated by the USDA to survive −10 °F or colder — the bottom of zone 6a. Each links to its USDA PLANTS profile.

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 Mc Gill, NV.

Soil in Mc Gill, NV

The soil mapped at the center of ZIP 89318 is Duffer — silt loam, somewhat poorly drained.

TextureSilt loama good balance for most vegetables

pH8.8alkaline; most vegetables like 6.0–7.0

DrainageSomewhat poorly drainedconsider raised beds

Organic matter0.75%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classFarmland of statewide importance, if irrigatedUSDA classification

Map unit: Duffer silt loam, 0 to 2 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 89318; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Mc Gill, NV

Summer high88 °Faverage high, July

Winter low14 °Faverage low, December

Hot days25days a year at 90 °F or more

Freezing nights181nights a year at 32 °F or less

Growing degree days2,269base 50 °F — the season’s usable heat

Longest day14 h 57 mindaylight on June 21

Shortest day9 h 23 mindaylight on December 21

Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully

Precipitation8.8 inper year, rain and melted snow

Snowfall37 inper year; 56 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mcgill, NV (3 mi away); precipitation: Mcgill, NV (3 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Duckwater, NV · 59 mi

840346b

Ibapah, UT · 63 mi

898335b

Ruby Valley, NV · 77 mi

Nevada planting zones →

Questions about 89318

What planting zone is ZIP code 89318?

ZIP code 89318 (Mc Gill, NV) is in USDA hardiness zone 6a on the 2023 map: the coldest night of an average winter reaches −10 to −5 °F (−23.3 to −20.6 °C).

When is the last frost in Mc Gill, NV?

The median last spring frost (32 °F) near 89318 is May 28; after June 13 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Mcgill station.

When is the first frost in Mc Gill, NV?

The median first fall frost near 89318 is September 24, giving a median frost-free growing season of 119 days.

When should I plant tomatoes in 89318?

Start tomato seeds indoors around Apr 2 – Apr 16 and set transplants outside around Jun 4 – Jun 18, one to three weeks after the median last frost.

How much rain and snow does 89318 get?

About 8.8 inches of precipitation a year and 37 inches of snowfall (NOAA 1991–2020 normals, Mcgill station).

How hot do summers get in Mc Gill, NV?

The average high peaks at 88 °F in July, with about 25 days a year at 90 °F or more.

What kind of soil does 89318 have?

The USDA soil survey maps Duffer at the center of ZIP 89318: silt loam, somewhat poorly drained, pH about 8.8 (alkaline).

Did spring come early in Mc Gill, NV in 2026?

Spring leaf-out near 89318 came on Mar 18 in 2026, 17 days earlier than the 1991–2020 average (Apr 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Mc Gill, NV?

Intermediate onions: the longest day near 89318 is 14 h 57 min, so day-neutral types bulb best; long-day varieties may not bulb fully.