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

Planting zone for 73008 — Bethany, OK

ZIP code 73008 (Bethany, Oklahoma County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is April 2 and the first fall frost November 4.

Where ZIP 73008 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 2
First frostNov 4
2012 zone7a

Was 7a on the 2012 map — half a zone warmer now. 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 Bethany, 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 Bethany, 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 — 2 miles away, 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 73008

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 73008 came on Feb 12 — 11 days earlier than the 1991–2020 average (Feb 23).

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).

Soil in Bethany, OK

The soil mapped at the center of ZIP 73008 is Derby — loamy fine sand, somewhat excessively drained.

TextureLoamy fine sanddrains and warms fast; dries out and needs more feeding
pH6.7neutral; most vegetables like 6.0–7.0
DrainageSomewhat excessively drainednatural drainage class
Organic matter0.75%low — add compost
Hydrologic groupAwater soaks in fast
Farmland classNot prime farmlandUSDA classification

Map unit: Derby-Urban land-Dougherty complex, 0 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 73008; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Bethany, 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

20°30°40°50°60°70°80°90°100°110°32 °FJanuary: average high 51 °F, low 28 °F 51°28° JanFebruary: average high 55 °F, low 31 °F 55°31° FebMarch: average high 64 °F, low 40 °F 64°40° MarApril: average high 72 °F, low 49 °F 72°49° AprMay: average high 80 °F, low 59 °F 80°59° MayJune: average high 89 °F, low 68 °F 89°68° JunJuly: average high 95 °F, low 73 °F 95°73° JulAugust: average high 94 °F, low 71 °F 94°71° AugSeptember: average high 85 °F, low 63 °F 85°63° SepOctober: average high 74 °F, low 51 °F 74°51° OctNovember: average high 62 °F, low 39 °F 62°39° NovDecember: average high 51 °F, low 30 °F 51°30° Dec

Precipitation by month inches

0″1″2″3″4″5″January: 0.78 in precipitation 0.8 JanFebruary: 0.98 in precipitation 1.0 FebMarch: 2.04 in precipitation 2.0 MarApril: 3.00 in precipitation 3.0 AprMay: 4.26 in precipitation 4.3 MayJune: 4.83 in precipitation 4.8 JunJuly: 2.88 in precipitation 2.9 JulAugust: 3.49 in precipitation 3.5 AugSeptember: 3.00 in precipitation 3.0 SepOctober: 2.72 in precipitation 2.7 OctNovember: 1.47 in precipitation 1.5 NovDecember: 1.27 in precipitation 1.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Oklahoma City Post Airport, OK (2 mi away); precipitation: Oklahoma City Post Airport, OK (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

731727b
Oklahoma City, OK · 1 mi
731227b
Oklahoma City, OK · 2 mi
731327b
Oklahoma City, OK · 2 mi
731277b
Oklahoma City, OK · 2 mi
731127b
Oklahoma City, OK · 4 mi
731077b
Oklahoma City, OK · 4 mi
731017b
Oklahoma City, OK · 5 mi
731287b
Oklahoma City, OK · 5 mi

Oklahoma planting zones →

Questions about 73008

What planting zone is ZIP code 73008?

ZIP code 73008 (Bethany, OK) 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 Bethany, OK?

The median last spring frost (32 °F) near 73008 is April 2; after April 18 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Oklahoma City Post Airport station.

When is the first frost in Bethany, OK?

The median first fall frost near 73008 is November 4, giving a median frost-free growing season of 216 days.

When should I plant tomatoes in 73008?

Start tomato seeds indoors around Feb 5 – Feb 19 and set transplants outside around Apr 9 – Apr 23, one to three weeks after the median last frost.

How much rain and snow does 73008 get?

About 30.7 inches of precipitation a year (NOAA 1991–2020 normals, Oklahoma City Post Airport station).

How hot do summers get in Bethany, OK?

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 73008 have?

The USDA soil survey maps Derby at the center of ZIP 73008: loamy fine sand, somewhat excessively drained, pH about 6.7 (neutral).

Did spring come early in Bethany, OK in 2026?

Spring leaf-out near 73008 came on Feb 12 in 2026, 11 days earlier than the 1991–2020 average (Feb 23), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Bethany, OK?

Intermediate onions: the longest day near 73008 is 14 h 34 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 73008 change?

Yes. The 2012 USDA map put 73008 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.