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

Planting zone for 72640 — Hasty, AR

ZIP code 72640 (Hasty, Newton County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is March 22 and the first fall frost November 9.

Where ZIP 72640 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 frostMar 22

First frostNov 9

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 Hasty, AR…

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 Hasty, AR

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMarch 22median — 50% chance of a later frost

Safe for tender plantsApril 8only 10% chance of frost after

First fall frostNovember 9median — 10% chance by Oct 25

Growing season231 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 7 and returns around November 23.

From the NOAA station Harrison, AR — 14 miles away, elevation 1,132 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 72640

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Feb 8 – Feb 22

SpinachSow outdoors · Feb 8 – Mar 1

Broccoli, cabbageStart indoors · Jan 11 – Jan 25

Broccoli, cabbageTransplant · Mar 1 – Mar 15

Onion setsPlant outdoors · Feb 22 – Mar 8

PotatoesPlant outdoors · Mar 1 – Mar 15

LettuceSow outdoors · Feb 22 – Mar 8

Carrots, beetsSow outdoors · Mar 1 – Mar 15

TomatoesStart indoors · Jan 25 – Feb 8

TomatoesTransplant · Mar 29 – Apr 12

Peppers, eggplantStart indoors · Jan 11 – Jan 25

Peppers, eggplantTransplant · Apr 5 – Apr 19

BeansSow outdoors · Mar 29 – Apr 12

Sweet cornSow outdoors · Mar 29 – Apr 12

Cucumbers, squashSow outdoors · Mar 29 – Apr 12

Fall lettuce, spinachSow outdoors · Sep 14 – Sep 28

GarlicPlant cloves · Oct 26 – Nov 30

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 22) and first fall frost (Nov 9) 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 72640 came on Feb 13 — 16 days earlier than the 1991–2020 average (Mar 1).

average
Mar 12026
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 7b in Arkansas

505 plants native to the lower 48 states, recorded in Arkansas, 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 Hasty, AR.

Soil in Hasty, AR

The soil mapped at the center of ZIP 72640 is Noark — slightly decomposed plant material, well drained.

TextureSlightly decomposed plant materialtop layer

pH4.3strongly acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter69%high

Hydrologic groupCwater soaks in slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Noark very gravelly silt loam, 8 to 20 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 72640; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Hasty, AR

Summer high90 °Faverage high, August

Winter low28 °Faverage low, January

Hot days41days a year at 90 °F or more

Freezing nights68nights a year at 32 °F or less

Growing degree days4,514base 50 °F — the season’s usable heat

Longest day14 h 36 mindaylight on June 21

Shortest day9 h 43 mindaylight on December 21

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

Precipitation52.7 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: Harrison, AR (14 mi away); precipitation: Jasper 3.8 Se, AR (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

726837b

Vendor, AR · 6 mi

726857b

Western Grove, AR · 6 mi

726557b

Mount Judea, AR · 7 mi

726487b

Marble Falls, AR · 8 mi

Parthenon, AR · 13 mi

726337b

Everton, AR · 14 mi

Arkansas planting zones →

Questions about 72640

What planting zone is ZIP code 72640?

ZIP code 72640 (Hasty, AR) 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 Hasty, AR?

The median last spring frost (32 °F) near 72640 is March 22; after April 8 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Harrison station.

When is the first frost in Hasty, AR?

The median first fall frost near 72640 is November 9, giving a median frost-free growing season of 231 days.

When should I plant tomatoes in 72640?

Start tomato seeds indoors around Jan 25 – Feb 8 and set transplants outside around Mar 29 – Apr 12, one to three weeks after the median last frost.

How much rain and snow does 72640 get?

About 52.7 inches of precipitation a year (NOAA 1991–2020 normals, Jasper 3.8 Se station).

How hot do summers get in Hasty, AR?

The average high peaks at 90 °F in August, with about 41 days a year at 90 °F or more.

What kind of soil does 72640 have?

The USDA soil survey maps Noark at the center of ZIP 72640: slightly decomposed plant material, well drained, pH about 4.3 (strongly acidic).

Did spring come early in Hasty, AR in 2026?

Spring leaf-out near 72640 came on Feb 13 in 2026, 16 days earlier than the 1991–2020 average (Mar 1), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Hasty, AR?

Intermediate onions: the longest day near 72640 is 14 h 36 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 72640 change?

Yes. The 2012 USDA map put 72640 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.