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

Planting zone for Yukon, OK

Yukon, OK is in USDA zone 7b across its 2 ZIP codes. The median last spring frost is April 2 and the first fall frost November 4.

Yukon on the zone map

Outlined: its 1 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.

Zone7b5 to 10 °F

ZIP codes2

Last frostApr 2

First frostNov 4

Growing season216 days

7b 2 ZIPs

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Yukon, OK…

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 Yukon, OK

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 2median — 50% chance of a later frost

Safe for tender plantsApril 18only 10% chance of frost after

First fall frostNovember 4median — 10% chance by Oct 21

Growing season216 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 19 and returns around November 13.

From the NOAA station Oklahoma City Post Airport, OK, elevation 1,296 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 Yukon

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 19 – Mar 5

SpinachSow outdoors · Feb 19 – Mar 12

Broccoli, cabbageStart indoors · Jan 22 – Feb 5

Broccoli, cabbageTransplant · Mar 12 – Mar 26

Onion setsPlant outdoors · Mar 5 – Mar 19

PotatoesPlant outdoors · Mar 12 – Mar 26

LettuceSow outdoors · Mar 5 – Mar 19

Carrots, beetsSow outdoors · Mar 12 – Mar 26

TomatoesStart indoors · Feb 5 – Feb 19

TomatoesTransplant · Apr 9 – Apr 23

Peppers, eggplantStart indoors · Jan 22 – Feb 5

Peppers, eggplantTransplant · Apr 16 – Apr 30

BeansSow outdoors · Apr 9 – Apr 23

Sweet cornSow outdoors · Apr 9 – Apr 23

Cucumbers, squashSow outdoors · Apr 9 – Apr 23

Fall lettuce, spinachSow outdoors · Sep 9 – Sep 23

GarlicPlant cloves · Oct 21 – Nov 25

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 2) and first fall frost (Nov 4) 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 73099 came on Feb 12 — 12 days earlier than the 1991–2020 average (Feb 24).

average
Feb 242026
Feb 12

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 Oklahoma

518 plants native to the lower 48 states, recorded in Oklahoma, and rated by the USDA to survive 5 °F or colder — the bottom of zone 7b. 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 Yukon, OK.

Soil in Yukon, OK

The soil mapped at the center of ZIP 73099 is Watonga — silty clay, moderately well drained.

TextureSilty clayholds water and nutrients; slow to drain and warm up

pH7.5slightly alkaline; most vegetables like 6.0–7.0

DrainageModerately well drainednatural drainage class

Organic matter2%moderate

Hydrologic groupDwater soaks in very slowly

Farmland classprime farmlandUSDA classification

Map unit: Watonga silty clay, 0 to 1 percent slopes, rarely flooded.

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 73099; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Yukon, OK

Summer high95 °Faverage high, July

Winter low28 °Faverage low, January

Hot days76days a year at 90 °F or more

Freezing nights73nights a year at 32 °F or less

Growing degree days5,363base 50 °F — the season’s usable heat

Longest day14 h 34 mindaylight on June 21

Shortest day9 h 45 mindaylight on December 21

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

Precipitation30.7 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: Oklahoma City Post Airport, OK (7 mi away); precipitation: Oklahoma City Post Airport, OK (7 mi away). Daylight is calculated from latitude.

ZIP codes in Yukon

Oklahoma planting zones →

Questions about Yukon

What planting zone is Yukon, OK?

Yukon, OK is in USDA hardiness zone 7b on the 2023 map (7b: 5 to 10 °F).

When is the last frost in Yukon, OK?

The median last spring frost is April 2 and the median first fall frost is November 4 (NOAA 1991–2020 normals, Oklahoma City Post Airport station).

When can I plant a garden in Yukon, OK?

Cool-season crops like peas and spinach go in around Feb 19 – Mar 12; tomatoes, peppers, beans and squash after about Apr 9, once frost risk has passed.

What kind of onions grow in Yukon, OK?

Intermediate onions: the longest day is 14 h 34 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

How much rain and snow does Yukon, OK get?

About 30.7 inches of precipitation a year (NOAA 1991–2020 normals).