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

Planting zone for 74031 — Foyil, OK

ZIP code 74031 (Foyil, Rogers County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 7 and the first fall frost October 30.

Where ZIP 74031 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.

Zone7a0 to 5 °F

Coldest night−17.8 to −15 °C

Last frostApr 7

First frostOct 30

2012 zone7a

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 7a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Foyil, 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 Foyil, OK

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostApril 7median — 50% chance of a later frost

Safe for tender plantsApril 24only 10% chance of frost after

First fall frostOctober 30median — 10% chance by Oct 15

Growing season205 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 25 and returns around November 8.

From the NOAA station Claremore 2 Ene, OK — 9 miles away, elevation 587 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 74031

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 24 – Mar 10

SpinachSow outdoors · Feb 24 – Mar 17

Broccoli, cabbageStart indoors · Jan 27 – Feb 10

Broccoli, cabbageTransplant · Mar 17 – Mar 31

Onion setsPlant outdoors · Mar 10 – Mar 24

PotatoesPlant outdoors · Mar 17 – Mar 31

LettuceSow outdoors · Mar 10 – Mar 24

Carrots, beetsSow outdoors · Mar 17 – Mar 31

TomatoesStart indoors · Feb 10 – Feb 24

TomatoesTransplant · Apr 14 – Apr 28

Peppers, eggplantStart indoors · Jan 27 – Feb 10

Peppers, eggplantTransplant · Apr 21 – May 5

BeansSow outdoors · Apr 14 – Apr 28

Sweet cornSow outdoors · Apr 14 – Apr 28

Cucumbers, squashSow outdoors · Apr 14 – Apr 28

Fall lettuce, spinachSow outdoors · Sep 4 – Sep 18

GarlicPlant cloves · Oct 16 – Nov 20

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 7) and first fall frost (Oct 30) 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 74031 came on Feb 13 — 14 days earlier than the 1991–2020 average (Feb 27).

average
Feb 272026
Feb 13

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 7a in Oklahoma

511 plants native to the lower 48 states, recorded in Oklahoma, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. 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 Foyil, OK.

Soil in Foyil, OK

The soil mapped at the center of ZIP 74031 is Dennis — silt loam, somewhat poorly drained.

TextureSilt loama good balance for most vegetables

pH5.6moderately acidic; most vegetables like 6.0–7.0

DrainageSomewhat poorly drainedconsider raised beds

Organic matter2.5%moderate

Hydrologic groupC/Dslow when drained; wet otherwise

Farmland classprime farmlandUSDA classification

Map unit: Dennis-Bates complex, 3 to 5 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 74031; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Foyil, OK

Summer high92 °Faverage high, July

Winter low24 °Faverage low, January

Hot days62days a year at 90 °F or more

Freezing nights94nights a year at 32 °F or less

Growing degree days4,778base 50 °F — the season’s usable heat

Longest day14 h 39 mindaylight on June 21

Shortest day9 h 40 mindaylight on December 21

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

Precipitation43.9 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: Claremore 2 Ene, OK (9 mi away); precipitation: Chelsea 4 S, OK (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7a.

Claremore, OK · 11 mi

740537a

Oologah, OK · 12 mi

743327a

Big Cabin, OK · 14 mi

Oklahoma planting zones →

Questions about 74031

What planting zone is ZIP code 74031?

ZIP code 74031 (Foyil, OK) is in USDA hardiness zone 7a on the 2023 map: the coldest night of an average winter reaches 0 to 5 °F (−17.8 to −15 °C).

When is the last frost in Foyil, OK?

The median last spring frost (32 °F) near 74031 is April 7; after April 24 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Claremore 2 Ene station.

When is the first frost in Foyil, OK?

The median first fall frost near 74031 is October 30, giving a median frost-free growing season of 205 days.

When should I plant tomatoes in 74031?

Start tomato seeds indoors around Feb 10 – Feb 24 and set transplants outside around Apr 14 – Apr 28, one to three weeks after the median last frost.

How much rain and snow does 74031 get?

About 43.9 inches of precipitation a year (NOAA 1991–2020 normals, Chelsea 4 S station).

How hot do summers get in Foyil, OK?

The average high peaks at 92 °F in July, with about 62 days a year at 90 °F or more.

What kind of soil does 74031 have?

The USDA soil survey maps Dennis at the center of ZIP 74031: silt loam, somewhat poorly drained, pH about 5.6 (moderately acidic).

Did spring come early in Foyil, OK in 2026?

Spring leaf-out near 74031 came on Feb 13 in 2026, 14 days earlier than the 1991–2020 average (Feb 27), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Foyil, OK?

Intermediate onions: the longest day near 74031 is 14 h 39 min, so day-neutral types bulb best; long-day varieties may not bulb fully.