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

Planting zone for 86045 — Tuba City, AZ

ZIP code 86045 (Tuba City, Coconino County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 16 and the first fall frost October 28.

Where ZIP 86045 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.

Zone7b5 to 10 °F
Coldest night−15 to −12.2 °C
Last frostApr 16
First frostOct 28
2012 zone7b

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 7b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Tuba City, AZ…

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 Tuba City, AZ

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 16median — 50% chance of a later frost
Safe for tender plantsMay 4only 10% chance of frost after
First fall frostOctober 28median — 10% chance by Oct 13
Growing season193 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 30 and returns around November 7.

From the NOAA station Tuba City, AZ — 7 miles away, elevation 4,987 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 86045

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 5 – Mar 19
SpinachSow outdoors · Mar 5 – Mar 26
Broccoli, cabbageStart indoors · Feb 5 – Feb 19
Broccoli, cabbageTransplant · Mar 26 – Apr 9
Onion setsPlant outdoors · Mar 19 – Apr 2
PotatoesPlant outdoors · Mar 26 – Apr 9
LettuceSow outdoors · Mar 19 – Apr 2
Carrots, beetsSow outdoors · Mar 26 – Apr 9
TomatoesStart indoors · Feb 19 – Mar 5
TomatoesTransplant · Apr 23 – May 7
Peppers, eggplantStart indoors · Feb 5 – Feb 19
Peppers, eggplantTransplant · Apr 30 – May 14
BeansSow outdoors · Apr 23 – May 7
Sweet cornSow outdoors · Apr 23 – May 7
Cucumbers, squashSow outdoors · Apr 23 – May 7
Fall lettuce, spinachSow outdoors · Sep 2 – Sep 16
GarlicPlant cloves · Oct 14 – Nov 18
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 16) and first fall frost (Oct 28) 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 86045 came on Feb 23 — 11 days earlier than the 1991–2020 average (Mar 6).

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 7b in Arizona

459 plants native to the lower 48 states, recorded in Arizona, and rated by the USDA to survive 5 °F or colder — the bottom of zone 7b. Each links to its USDA PLANTS profile.

Trees 24

Arizona cypress50 ft · blooms spring · low shade tolerance · to −23 °FArizona madrone30 ft · blooms late spring · high shade tolerance · to −4 °FArizona sycamore80 ft · blooms early spring · high shade tolerance · to −8 °FArizona walnut50 ft · blooms late spring · high shade tolerance · to −33 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fblue spruce100 ft · blooms late spring · medium shade tolerance · to −38 °F

Shrubs 95

alderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °FAmerican tarwort3 ft · blooms late spring · high shade tolerance · to −23 °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 °F

Wildflowers & perennials 190

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 142

alkali 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 °FArizona cottontop4 ft · blooms late summer · high shade tolerance · to −13 °FArizona fescue2 ft · blooms late spring · high shade tolerance · to −23 °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 Tuba City, AZ.

Soil in Tuba City, AZ

The soil mapped at the center of ZIP 86045 is Sheppard — loamy sand, excessively drained.

TextureLoamy sanddrains and warms fast; dries out and needs more feeding
pH8.2alkaline; most vegetables like 6.0–7.0
DrainageExcessively drainednatural drainage class
Organic matter0.3%low — add compost
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Sheppard-Rock outcrop-Sheppard, moderately deep complex, 2 to 15 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 86045; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Tuba City, AZ

Summer high95 °Faverage high, July
Winter low23 °Faverage low, December
Hot days76days a year at 90 °F or more
Freezing nights119nights a year at 32 °F or less
Growing degree days4,031base 50 °F — the season’s usable heat
Longest day14 h 37 mindaylight on June 21
Shortest day9 h 42 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation6.3 inper year, rain and melted snow

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 47 °F, low 24 °F 47°24° JanFebruary: average high 54 °F, low 27 °F 54°27° FebMarch: average high 63 °F, low 34 °F 63°34° MarApril: average high 71 °F, low 39 °F 71°39° AprMay: average high 80 °F, low 49 °F 80°49° MayJune: average high 91 °F, low 57 °F 91°57° JunJuly: average high 95 °F, low 64 °F 95°64° JulAugust: average high 92 °F, low 62 °F 92°62° AugSeptember: average high 85 °F, low 54 °F 85°54° SepOctober: average high 73 °F, low 42 °F 73°42° OctNovember: average high 58 °F, low 31 °F 58°31° NovDecember: average high 46 °F, low 23 °F 46°23° Dec

Precipitation by month inches

0″1″2″January: 0.46 in precipitation 0.5 JanFebruary: 0.42 in precipitation 0.4 FebMarch: 0.53 in precipitation 0.5 MarApril: 0.21 in precipitation 0.2 AprMay: 0.49 in precipitation 0.5 MayJune: 0.09 in precipitation 0.1 JunJuly: 0.72 in precipitation 0.7 JulAugust: 0.79 in precipitation 0.8 AugSeptember: 1.18 in precipitation 1.2 SepOctober: 0.64 in precipitation 0.6 OctNovember: 0.43 in precipitation 0.4 NovDecember: 0.31 in precipitation 0.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Tuba City, AZ (7 mi away); precipitation: Tuba City, AZ (7 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.

860207b
Cameron, AZ · 23 mi
860307a
Hotevilla, AZ · 27 mi
860397a
Kykotsmovi Village, AZ · 33 mi
860407b
Page, AZ · 39 mi
860166b
Gray Mountain, AZ · 40 mi
860437a
Second Mesa, AZ · 40 mi
860537b
Kaibeto, AZ · 43 mi
860447a
Tonalea, AZ · 45 mi

Arizona planting zones →

Questions about 86045

What planting zone is ZIP code 86045?

ZIP code 86045 (Tuba City, AZ) is in USDA hardiness zone 7b on the 2023 map: the coldest night of an average winter reaches 5 to 10 °F (−15 to −12.2 °C).

When is the last frost in Tuba City, AZ?

The median last spring frost (32 °F) near 86045 is April 16; after May 4 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Tuba City station.

When is the first frost in Tuba City, AZ?

The median first fall frost near 86045 is October 28, giving a median frost-free growing season of 193 days.

When should I plant tomatoes in 86045?

Start tomato seeds indoors around Feb 19 – Mar 5 and set transplants outside around Apr 23 – May 7, one to three weeks after the median last frost.

How much rain and snow does 86045 get?

About 6.3 inches of precipitation a year (NOAA 1991–2020 normals, Tuba City station).

How hot do summers get in Tuba City, AZ?

The average high peaks at 95 °F in July, with about 76 days a year at 90 °F or more.

What kind of soil does 86045 have?

The USDA soil survey maps Sheppard at the center of ZIP 86045: loamy sand, excessively drained, pH about 8.2 (alkaline).

Did spring come early in Tuba City, AZ in 2026?

Spring leaf-out near 86045 came on Feb 23 in 2026, 11 days earlier than the 1991–2020 average (Mar 6), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Tuba City, AZ?

Intermediate onions: the longest day near 86045 is 14 h 37 min, so day-neutral types bulb best; long-day varieties may not bulb fully.