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

Planting zone for 72577 — Sidney, AR

ZIP code 72577 (Sidney, Sharp County) is in USDA zone 7a: the coldest winter night averages 0 to 5 °F. The median last spring frost is April 14 and the first fall frost October 20.

Where ZIP 72577 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 frostApr 14
First frostOct 20
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 Sidney, 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 Sidney, AR

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 14median — 50% chance of a later frost
Safe for tender plantsApril 29only 10% chance of frost after
First fall frostOctober 20median — 10% chance by Oct 6
Growing season190 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 1 and returns around October 31.

From the NOAA station Evening Shade 1 Nne, AR — 6 miles away, elevation 515 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 72577

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 3 – Mar 17
SpinachSow outdoors · Mar 3 – Mar 24
Broccoli, cabbageStart indoors · Feb 3 – Feb 17
Broccoli, cabbageTransplant · Mar 24 – Apr 7
Onion setsPlant outdoors · Mar 17 – Mar 31
PotatoesPlant outdoors · Mar 24 – Apr 7
LettuceSow outdoors · Mar 17 – Mar 31
Carrots, beetsSow outdoors · Mar 24 – Apr 7
TomatoesStart indoors · Feb 17 – Mar 3
TomatoesTransplant · Apr 21 – May 5
Peppers, eggplantStart indoors · Feb 3 – Feb 17
Peppers, eggplantTransplant · Apr 28 – May 12
BeansSow outdoors · Apr 21 – May 5
Sweet cornSow outdoors · Apr 21 – May 5
Cucumbers, squashSow outdoors · Apr 21 – May 5
Fall lettuce, spinachSow outdoors · Aug 25 – Sep 8
GarlicPlant cloves · Oct 6 – Nov 10
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 14) and first fall frost (Oct 20) 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 72577 came on Feb 20 — 8 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).

Native plants for zone 7a in Arkansas

501 plants native to the lower 48 states, recorded in Arkansas, and rated by the USDA to survive 0 °F or colder — the bottom of zone 7a. Each links to its USDA PLANTS profile.

Trees 69

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican beech80 ft · blooms mid spring · low shade tolerance · to −44 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °FAmerican sycamore100 ft · blooms spring · medium shade tolerance · to −34 °Fbald cypress130 ft · blooms mid spring · medium shade tolerance · to −18 °Fbitternut hickory75 ft · blooms mid spring · high shade tolerance · to −47 °F

Shrubs 93

alternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican beautyberry6 ft · blooms early summer · medium shade tolerance · to −8 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican holly40 ft · blooms mid spring · low shade tolerance · to −20 °FAmerican hornbeam30 ft · blooms mid spring · low shade tolerance · to −34 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °F

Wildflowers & perennials 172

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican pokeweed7 ft · blooms mid summer · low shade tolerance · to −33 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °F

Grasses 144

alkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAmerican cupscale3 ft · blooms early summer · high shade tolerance · to −18 °Fautumn bluegrass1.5 ft · blooms late spring · medium shade tolerance · to −8 °FBailey's sedge2.1 ft · blooms late spring · low shade tolerance · to −33 °FBicknell's sedge3 ft · blooms late spring · low shade tolerance · to −38 °Fbig bluestem6 ft · blooms summer · high shade tolerance · to −46 °F

Vines 14

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °FAmerican wisteria50 ft · blooms spring · low shade tolerance · to −3 °Fcatbird grape30 ft · blooms late spring · medium shade tolerance · to −13 °Fcupseed30 ft · blooms late spring · low shade tolerance · to −3 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Ffrost grape83 ft · blooms late spring · medium shade tolerance · to −23 °F

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 Sidney, AR.

Soil in Sidney, AR

The soil mapped at the center of ZIP 72577 is Boden — gravelly sandy loam, well drained.

TextureGravelly sandy loamdrains and warms fast; dries out and needs more feeding
pH5.0strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2%moderate
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Boden gravelly sandy 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 72577; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Sidney, AR

Summer high89 °Faverage high, July
Winter low24 °Faverage low, January
Hot days64days a year at 90 °F or more
Freezing nights98nights a year at 32 °F or less
Growing degree days4,199base 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
Precipitation51.5 inper year, rain and melted snow
Snowfall7 inper year; 3 days with snow on the ground

Average high and low, by month

10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 45 °F, low 24 °F 45°24° JanFebruary: average high 51 °F, low 27 °F 51°27° FebMarch: average high 60 °F, low 36 °F 60°36° MarApril: average high 70 °F, low 45 °F 70°45° AprMay: average high 77 °F, low 54 °F 77°54° MayJune: average high 85 °F, low 63 °F 85°63° JunJuly: average high 89 °F, low 67 °F 89°67° JulAugust: average high 89 °F, low 65 °F 89°65° AugSeptember: average high 82 °F, low 57 °F 82°57° SepOctober: average high 71 °F, low 44 °F 71°44° OctNovember: average high 58 °F, low 34 °F 58°34° NovDecember: average high 48 °F, low 27 °F 48°27° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″6″January: 3.53 in precipitation, 1.8 in snowfall 3.5❄2 JanFebruary: 3.69 in precipitation, 2.6 in snowfall 3.7❄3 FebMarch: 4.88 in precipitation, 1.4 in snowfall 4.9❄1 MarApril: 5.54 in precipitation, 0.1 in snowfall 5.5 AprMay: 5.59 in precipitation 5.6 MayJune: 3.23 in precipitation 3.2 JunJuly: 4.32 in precipitation 4.3 JulAugust: 3.82 in precipitation 3.8 AugSeptember: 3.35 in precipitation 3.4 SepOctober: 4.06 in precipitation, 0.1 in snowfall 4.1 OctNovember: 4.91 in precipitation 4.9 NovDecember: 4.53 in precipitation, 0.7 in snowfall 4.5❄1 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Evening Shade 1 Nne, AR (6 mi away); precipitation: Evening Shade 1 Nne, AR (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

725737b
Sage, AR · 6 mi
725327a
Evening Shade, AR · 8 mi
725367a
Franklin, AR · 8 mi
725617b
Mount Pleasant, AR · 9 mi
725847b
Violet Hill, AR · 11 mi
725217b
Cave City, AR · 11 mi
725267b
Cushman, AR · 11 mi
725127a
Horseshoe Bend, AR · 13 mi

Arkansas planting zones →

Questions about 72577

What planting zone is ZIP code 72577?

ZIP code 72577 (Sidney, 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 Sidney, AR?

The median last spring frost (32 °F) near 72577 is April 14; after April 29 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Evening Shade 1 Nne station.

When is the first frost in Sidney, AR?

The median first fall frost near 72577 is October 20, giving a median frost-free growing season of 190 days.

When should I plant tomatoes in 72577?

Start tomato seeds indoors around Feb 17 – Mar 3 and set transplants outside around Apr 21 – May 5, one to three weeks after the median last frost.

How much rain and snow does 72577 get?

About 51.5 inches of precipitation a year and 7 inches of snowfall (NOAA 1991–2020 normals, Evening Shade 1 Nne station).

How hot do summers get in Sidney, AR?

The average high peaks at 89 °F in July, with about 64 days a year at 90 °F or more.

What kind of soil does 72577 have?

The USDA soil survey maps Boden at the center of ZIP 72577: gravelly sandy loam, well drained, pH about 5.0 (strongly acidic).

Did spring come early in Sidney, AR in 2026?

Spring leaf-out near 72577 came on Feb 20 in 2026, 8 days earlier than the 1991–2020 average (Feb 28), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Sidney, AR?

Intermediate onions: the longest day near 72577 is 14 h 37 min, so day-neutral types bulb best; long-day varieties may not bulb fully.