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

Planting zone for 72413 — Biggers, AR

ZIP code 72413 (Biggers, Randolph County) is in USDA zone 7b: the coldest winter night averages 5 to 10 °F. The median last spring frost is March 31 and the first fall frost November 1.

Where ZIP 72413 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 31
First frostNov 1
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 Biggers, 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 Biggers, AR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMarch 31median — 50% chance of a later frost
Safe for tender plantsApril 18only 10% chance of frost after
First fall frostNovember 1median — 10% chance by Oct 21
Growing season214 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 18 and returns around November 12.

From the NOAA station Pocahontas 1, AR — 9 miles away, elevation 315 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 72413

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Feb 17 – Mar 3
SpinachSow outdoors · Feb 17 – Mar 10
Broccoli, cabbageStart indoors · Jan 20 – Feb 3
Broccoli, cabbageTransplant · Mar 10 – Mar 24
Onion setsPlant outdoors · Mar 3 – Mar 17
PotatoesPlant outdoors · Mar 10 – Mar 24
LettuceSow outdoors · Mar 3 – Mar 17
Carrots, beetsSow outdoors · Mar 10 – Mar 24
TomatoesStart indoors · Feb 3 – Feb 17
TomatoesTransplant · Apr 7 – Apr 21
Peppers, eggplantStart indoors · Jan 20 – Feb 3
Peppers, eggplantTransplant · Apr 14 – Apr 28
BeansSow outdoors · Apr 7 – Apr 21
Sweet cornSow outdoors · Apr 7 – Apr 21
Cucumbers, squashSow outdoors · Apr 7 – Apr 21
Fall lettuce, spinachSow outdoors · Sep 6 – Sep 20
GarlicPlant cloves · Oct 18 – Nov 22
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Mar 31) and first fall frost (Nov 1) 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 72413 came on Feb 20 — 9 days earlier than the 1991–2020 average (Mar 1).

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 Biggers, AR

The soil mapped at the center of ZIP 72413 is McCrory — fine sandy loam, poorly drained.

TextureFine sandy loamdrains and warms fast; dries out and needs more feeding
pH6.2slightly acidic; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter1.5%low — add compost
Hydrologic groupC/Dslow when drained; wet otherwise
Farmland classFarmland of statewide importanceUSDA classification

Map unit: McCrory fine sandy loam, 0 to 1 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 72413; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Biggers, AR

Summer high90 °Faverage high, July
Winter low26 °Faverage low, January
Hot days51days a year at 90 °F or more
Freezing nights82nights a year at 32 °F or less
Growing degree days4,579base 50 °F — the season’s usable heat
Longest day14 h 38 mindaylight on June 21
Shortest day9 h 41 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation51.5 inper year, rain and melted snow
Snowfall6 inper year; 6 days with snow on the ground

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 46 °F, low 26 °F 46°26° JanFebruary: average high 50 °F, low 29 °F 50°29° FebMarch: average high 60 °F, low 38 °F 60°38° MarApril: average high 71 °F, low 47 °F 71°47° AprMay: average high 79 °F, low 56 °F 79°56° MayJune: average high 87 °F, low 65 °F 87°65° JunJuly: average high 90 °F, low 69 °F 90°69° JulAugust: average high 89 °F, low 68 °F 89°68° AugSeptember: average high 83 °F, low 60 °F 83°60° SepOctober: average high 72 °F, low 47 °F 72°47° OctNovember: average high 59 °F, low 37 °F 59°37° NovDecember: average high 49 °F, low 29 °F 49°29° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 3.81 in precipitation, 2.3 in snowfall 3.8❄2 JanFebruary: 3.94 in precipitation, 1.9 in snowfall 3.9❄2 FebMarch: 4.74 in precipitation, 1.4 in snowfall 4.7❄1 MarApril: 5.37 in precipitation 5.4 AprMay: 5.38 in precipitation 5.4 MayJune: 3.46 in precipitation 3.5 JunJuly: 3.65 in precipitation 3.6 JulAugust: 3.90 in precipitation 3.9 AugSeptember: 3.84 in precipitation 3.8 SepOctober: 3.86 in precipitation, 0.1 in snowfall 3.9 OctNovember: 4.85 in precipitation, 0.2 in snowfall 4.8 NovDecember: 4.65 in precipitation, 0.4 in snowfall 4.7 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Pocahontas 1, AR (9 mi away); precipitation: Pocahontas 1, AR (9 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 7b.

724257b
Delaplaine, AR · 6 mi
724627b
Reyno, AR · 7 mi
724247b
Datto, AR · 8 mi
724537b
Peach Orchard, AR · 8 mi
724447b
Maynard, AR · 9 mi
724497b
O Kean, AR · 9 mi
724557b
Pocahontas, AR · 13 mi
724707b
Success, AR · 14 mi

Arkansas planting zones →

Questions about 72413

What planting zone is ZIP code 72413?

ZIP code 72413 (Biggers, 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 Biggers, AR?

The median last spring frost (32 °F) near 72413 is March 31; after April 18 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Pocahontas 1 station.

When is the first frost in Biggers, AR?

The median first fall frost near 72413 is November 1, giving a median frost-free growing season of 214 days.

When should I plant tomatoes in 72413?

Start tomato seeds indoors around Feb 3 – Feb 17 and set transplants outside around Apr 7 – Apr 21, one to three weeks after the median last frost.

How much rain and snow does 72413 get?

About 51.5 inches of precipitation a year and 6 inches of snowfall (NOAA 1991–2020 normals, Pocahontas 1 station).

How hot do summers get in Biggers, AR?

The average high peaks at 90 °F in July, with about 51 days a year at 90 °F or more.

What kind of soil does 72413 have?

The USDA soil survey maps McCrory at the center of ZIP 72413: fine sandy loam, poorly drained, pH about 6.2 (slightly acidic).

Did spring come early in Biggers, AR in 2026?

Spring leaf-out near 72413 came on Feb 20 in 2026, 9 days earlier than the 1991–2020 average (Mar 1), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Biggers, AR?

Intermediate onions: the longest day near 72413 is 14 h 38 min, so day-neutral types bulb best; long-day varieties may not bulb fully.

Did the zone for 72413 change?

Yes. The 2012 USDA map put 72413 in zone 7a; the 2023 map puts it in zone 7b. The newer map uses 1991–2020 data and more weather stations.