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

Planting zone for 72769 — Summers, AR

ZIP code 72769 (Summers, Washington County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is March 31 and the first fall frost November 4.

Where ZIP 72769 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.

Zone7a0 to 5 °F
Coldest night−17.8 to −15 °C
Last frostMar 31
First frostNov 4
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 Summers, 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 Summers, 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 20only 10% chance of frost after
First fall frostNovember 4median — 10% chance by Oct 21
Growing season217 daysfrost-free, median

A hard freeze (28 °F) usually ends around March 17 and returns around November 14.

From the NOAA station Stilwell 5 Nnw, OK — 13 miles away, elevation 1,001 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 72769

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 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 (Mar 31) 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 72769 came on Feb 15 — 13 days earlier than the 1991–2020 average (Feb 28).

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 Summers, AR

The soil mapped at the center of ZIP 72769 is Nixa — slightly decomposed plant material, moderately well drained.

TextureSlightly decomposed plant materialtop layer
pH4.3strongly acidic; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter69%high
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Nixa very gravelly silt loam, 3 to 8 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 72769; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Summers, AR

Summer high90 °Faverage high, July
Winter low27 °Faverage low, January
Hot days43days a year at 90 °F or more
Freezing nights77nights a year at 32 °F or less
Growing degree days4,577base 50 °F — the season’s usable heat
Longest day14 h 37 mindaylight on June 21
Shortest day9 h 42 mindaylight on December 21
Onions to growIntermediateday-neutral types bulb best; long-day varieties may not bulb fully
Precipitation50.5 inper year, rain and melted snow

Average high and low, by month

20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 49 °F, low 27 °F 49°27° JanFebruary: average high 54 °F, low 32 °F 54°32° FebMarch: average high 61 °F, low 39 °F 61°39° MarApril: average high 71 °F, low 47 °F 71°47° AprMay: average high 77 °F, low 56 °F 77°56° MayJune: average high 85 °F, low 64 °F 85°64° JunJuly: average high 90 °F, low 68 °F 90°68° JulAugust: average high 90 °F, low 67 °F 90°67° AugSeptember: average high 83 °F, low 59 °F 83°59° SepOctober: average high 72 °F, low 49 °F 72°49° OctNovember: average high 62 °F, low 38 °F 62°38° NovDecember: average high 50 °F, low 30 °F 50°30° Dec

Precipitation by month inches

0″2″4″6″January: 2.89 in precipitation 2.9 JanFebruary: 2.74 in precipitation 2.7 FebMarch: 4.21 in precipitation 4.2 MarApril: 5.44 in precipitation 5.4 AprMay: 6.16 in precipitation 6.2 MayJune: 4.83 in precipitation 4.8 JunJuly: 4.07 in precipitation 4.1 JulAugust: 3.57 in precipitation 3.6 AugSeptember: 4.62 in precipitation 4.6 SepOctober: 4.50 in precipitation 4.5 OctNovember: 4.14 in precipitation 4.1 NovDecember: 3.36 in precipitation 3.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Stilwell 5 Nnw, OK (13 mi away); precipitation: Westville 0.2 Ene, OK (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

3 of the 8 nearest ZIP codes are in a different zone — elevation and distance from water change winter lows quickly.

727447b
Lincoln, AR · 6 mi
749657b
Westville, OK · 8 mi
727617a
Siloam Springs, AR · 9 mi
749647a
Watts, OK · 10 mi
727537a
Prairie Grove, AR · 12 mi
727497b
Morrow, AR · 12 mi
727047a
Fayetteville, AR · 12 mi
727307a
Farmington, AR · 13 mi

Arkansas planting zones →

Questions about 72769

What planting zone is ZIP code 72769?

ZIP code 72769 (Summers, AR) 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 Summers, AR?

The median last spring frost (32 °F) near 72769 is March 31; after April 20 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Stilwell 5 Nnw station.

When is the first frost in Summers, AR?

The median first fall frost near 72769 is November 4, giving a median frost-free growing season of 217 days.

When should I plant tomatoes in 72769?

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 72769 get?

About 50.5 inches of precipitation a year (NOAA 1991–2020 normals, Westville 0.2 Ene station).

How hot do summers get in Summers, AR?

The average high peaks at 90 °F in July, with about 43 days a year at 90 °F or more.

What kind of soil does 72769 have?

The USDA soil survey maps Nixa at the center of ZIP 72769: slightly decomposed plant material, moderately well drained, pH about 4.3 (strongly acidic).

Did spring come early in Summers, AR in 2026?

Spring leaf-out near 72769 came on Feb 15 in 2026, 13 days earlier than the 1991–2020 average (Feb 28), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Summers, AR?

Intermediate onions: the longest day near 72769 is 14 h 37 min, so day-neutral types bulb best; long-day varieties may not bulb fully.