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

Planting zone for 86340 — Sedona, AZ

ZIP code 86340 (Sedona, Yavapai County) is in USDA zone 8b: the coldest winter night averages 15 to 20 °F. The median last spring frost is April 20 and the first fall frost October 27.

Where ZIP 86340 is

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.

Zone8b15 to 20 °F

Coldest night−9.4 to −6.7 °C

Last frostApr 20

First frostOct 27

2012 zone8b

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 8b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Sedona, 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 Sedona, AZ

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 20median — 50% chance of a later frost

Safe for tender plantsMay 7only 10% chance of frost after

First fall frostOctober 27median — 10% chance by Oct 13

Growing season188 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 1 and returns around November 8.

From the NOAA station Prescott Love Field, AZ — 4 miles away, elevation 5,043 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 86340

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 9 – Mar 23

SpinachSow outdoors · Mar 9 – Mar 30

Broccoli, cabbageStart indoors · Feb 9 – Feb 23

Broccoli, cabbageTransplant · Mar 30 – Apr 13

Onion setsPlant outdoors · Mar 23 – Apr 6

PotatoesPlant outdoors · Mar 30 – Apr 13

LettuceSow outdoors · Mar 23 – Apr 6

Carrots, beetsSow outdoors · Mar 30 – Apr 13

TomatoesStart indoors · Feb 23 – Mar 9

TomatoesTransplant · Apr 27 – May 11

Peppers, eggplantStart indoors · Feb 9 – Feb 23

Peppers, eggplantTransplant · May 4 – May 18

BeansSow outdoors · Apr 27 – May 11

Sweet cornSow outdoors · Apr 27 – May 11

Cucumbers, squashSow outdoors · Apr 27 – May 11

Fall lettuce, spinachSow outdoors · Sep 1 – Sep 15

GarlicPlant cloves · Oct 13 – Nov 17

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 20) and first fall frost (Oct 27) 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 86340 came on Feb 8 — 14 days earlier than the 1991–2020 average (Feb 22).

average
Feb 222026
Feb 8

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 8b in Arizona

482 plants native to the lower 48 states, recorded in Arizona, and rated by the USDA to survive 15 °F or colder — the bottom of zone 8b. 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 Sedona, AZ.

Soil in Sedona, AZ

The soil mapped at the center of ZIP 86340 is Lynx — loam, well drained.

TextureLoama good balance for most vegetables

pH7.2neutral; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter1.5%low — add compost

Hydrologic groupCwater soaks in slowly

Farmland classPrime farmland if irrigatedUSDA classification

Map unit: Lynx soils.

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 86340; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Sedona, AZ

Summer high90 °Faverage high, July

Winter low26 °Faverage low, January

Hot days50days a year at 90 °F or more

Freezing nights113nights a year at 32 °F or less

Growing degree days3,694base 50 °F — the season’s usable heat

Longest day14 h 29 mindaylight on June 21

Shortest day9 h 49 mindaylight on December 21

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

Precipitation12.8 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Prescott Love Field, AZ (4 mi away); precipitation: Prescott Love Field, AZ (4 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.

863238a

Chino Valley, AZ · 4 mi

863127b

Prescott Valley, AZ · 6 mi

863158a

Prescott Valley, AZ · 7 mi

863017b

Prescott, AZ · 8 mi

863147b

Prescott Valley, AZ · 8 mi

All 5 ZIP codes in Sedona → · Arizona planting zones →

Questions about 86340

What planting zone is ZIP code 86340?

ZIP code 86340 (Sedona, AZ) is in USDA hardiness zone 8b on the 2023 map: the coldest night of an average winter reaches 15 to 20 °F (−9.4 to −6.7 °C).

When is the last frost in Sedona, AZ?

The median last spring frost (32 °F) near 86340 is April 20; after May 7 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Prescott Love Field station.

When is the first frost in Sedona, AZ?

The median first fall frost near 86340 is October 27, giving a median frost-free growing season of 188 days.

When should I plant tomatoes in 86340?

Start tomato seeds indoors around Feb 23 – Mar 9 and set transplants outside around Apr 27 – May 11, one to three weeks after the median last frost.

How much rain and snow does 86340 get?

About 12.8 inches of precipitation a year (NOAA 1991–2020 normals, Prescott Love Field station).

How hot do summers get in Sedona, AZ?

The average high peaks at 90 °F in July, with about 50 days a year at 90 °F or more.

What kind of soil does 86340 have?

The USDA soil survey maps Lynx at the center of ZIP 86340: loam, well drained, pH about 7.2 (neutral).

Did spring come early in Sedona, AZ in 2026?

Spring leaf-out near 86340 came on Feb 8 in 2026, 14 days earlier than the 1991–2020 average (Feb 22), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Sedona, AZ?

Intermediate onions: the longest day near 86340 is 14 h 29 min, so day-neutral types bulb best; long-day varieties may not bulb fully.