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

Planting zone for 58563 — New Salem, ND

ZIP code 58563 (New Salem, Morton County) is in USDA zone 4a: the coldest winter night averages −30 to −25 °F. The median last spring frost is May 18 and the first fall frost September 24.

Where ZIP 58563 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.

Zone4a−30 to −25 °F
Coldest night−34.4 to −31.7 °C
Last frostMay 18
First frostSep 24
2012 zone4a

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 4a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for New Salem, ND…

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 New Salem, ND

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 18median — 50% chance of a later frost
Safe for tender plantsJune 1only 10% chance of frost after
First fall frostSeptember 24median — 10% chance by Sep 12
Growing season127 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 8 and returns around October 3.

From the NOAA station New Salem 5nw, ND — 2 miles away, elevation 2,149 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 58563

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 6 – Apr 20
SpinachSow outdoors · Apr 6 – Apr 27
Broccoli, cabbageStart indoors · Mar 9 – Mar 23
Broccoli, cabbageTransplant · Apr 27 – May 11
Onion setsPlant outdoors · Apr 20 – May 4
PotatoesPlant outdoors · Apr 27 – May 11
LettuceSow outdoors · Apr 20 – May 4
Carrots, beetsSow outdoors · Apr 27 – May 11
TomatoesStart indoors · Mar 23 – Apr 6
TomatoesTransplant · May 25 – Jun 8
Peppers, eggplantStart indoors · Mar 9 – Mar 23
Peppers, eggplantTransplant · Jun 1 – Jun 15
BeansSow outdoors · May 25 – Jun 8
Sweet cornSow outdoors · May 25 – Jun 8
Cucumbers, squashSow outdoors · May 25 – Jun 8
Fall lettuce, spinachSow outdoors · Jul 30 – Aug 13
GarlicPlant cloves · Sep 10 – Oct 15
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 18) and first fall frost (Sep 24) 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 58563 came on Apr 21 — about the same time as the 1991–2020 average (Apr 20).

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 4a in North Dakota

342 plants native to the lower 48 states, recorded in North Dakota, and rated by the USDA to survive −30 °F or colder — the bottom of zone 4a. Each links to its USDA PLANTS profile.

Trees 21

American basswood100 ft · blooms late spring · low shade tolerance · to −46 °FAmerican elm120 ft · blooms early spring · medium shade tolerance · to −46 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fbigtooth aspen65 ft · blooms mid spring · high shade tolerance · to −43 °Fblack ash65 ft · blooms early spring · high shade tolerance · to −47 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °F

Shrubs 56

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican hazelnut10 ft · blooms spring · medium shade tolerance · to −33 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °Fbeaked hazelnut15 ft · blooms early spring · low shade tolerance · to −47 °Fbig sagebrush4 ft · blooms mid summer · high shade tolerance · to −43 °F

Wildflowers & perennials 146

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine sweetvetch2 ft · blooms early summer · high shade tolerance · to −62 °FAmerican bur-reed3 ft · blooms indeterminate · medium shade tolerance · to −33 °FAmerican eelgrass1 ft · blooms mid summer · high shade tolerance · to −33 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °F

Grasses 110

alkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °Fanalogue sedge1.5 ft · blooms late spring · medium shade tolerance · to −38 °Farctic brome3 ft · blooms early summer · low shade tolerance · to −33 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °FBebb's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 4

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fdevil's darning needles15 ft · blooms mid summer · medium shade tolerance · to −38 °Friverbank grape45 ft · blooms late spring · medium shade tolerance · to −33 °Fwestern white clematis1 ft · blooms mid summer · medium shade tolerance · to −38 °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 New Salem, ND.

Soil in New Salem, ND

The soil mapped at the center of ZIP 58563 is Daglum — silt loam, moderately well drained.

TextureSilt loama good balance for most vegetables
pH6.6neutral; most vegetables like 6.0–7.0
DrainageModerately well drainednatural drainage class
Organic matter3%moderate
Hydrologic groupDwater soaks in very slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Daglum-Rhoades complex, 0 to 6 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 58563; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in New Salem, ND

Summer high83 °Faverage high, July
Winter low2 °Faverage low, January
Hot days16days a year at 90 °F or more
Freezing nights192nights a year at 32 °F or less
Growing degree days2,111base 50 °F — the season’s usable heat
Longest day15 h 53 mindaylight on June 21
Shortest day8 h 31 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation18.3 inper year, rain and melted snow
Snowfall45 inper year; 100 days with snow on the ground

Average high and low, by month

−10°0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 21 °F, low 2 °F 21°2° JanFebruary: average high 26 °F, low 6 °F 26°6° FebMarch: average high 39 °F, low 18 °F 39°18° MarApril: average high 54 °F, low 29 °F 54°29° AprMay: average high 66 °F, low 41 °F 66°41° MayJune: average high 75 °F, low 51 °F 75°51° JunJuly: average high 83 °F, low 56 °F 83°56° JulAugust: average high 82 °F, low 54 °F 82°54° AugSeptember: average high 72 °F, low 45 °F 72°45° SepOctober: average high 56 °F, low 31 °F 56°31° OctNovember: average high 39 °F, low 18 °F 39°18° NovDecember: average high 26 °F, low 7 °F 26°7° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″January: 0.38 in precipitation, 6.8 in snowfall 0.4❄7 JanFebruary: 0.43 in precipitation, 6.5 in snowfall 0.4❄7 FebMarch: 0.71 in precipitation, 7.6 in snowfall 0.7❄8 MarApril: 1.50 in precipitation, 5 in snowfall 1.5❄5 AprMay: 2.66 in precipitation, 0.8 in snowfall 2.7❄1 MayJune: 3.45 in precipitation 3.5 JunJuly: 2.83 in precipitation 2.8 JulAugust: 2.16 in precipitation 2.2 AugSeptember: 1.73 in precipitation 1.7 SepOctober: 1.38 in precipitation, 3.2 in snowfall 1.4❄3 OctNovember: 0.58 in precipitation, 5.7 in snowfall 0.6❄6 NovDecember: 0.52 in precipitation, 8.9 in snowfall 0.5❄9 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: New Salem 5nw, ND (2 mi away); precipitation: New Salem 5nw, ND (2 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 4a.

585204a
Almont, ND · 17 mi
586314a
Glen Ullin, ND · 20 mi
585304a
Center, ND · 21 mi
585544a
Mandan, ND · 25 mi
585714a
Stanton, ND · 27 mi
585234a
Beulah, ND · 30 mi
585354a
Flasher, ND · 30 mi
585054a
Bismarck, ND · 32 mi

North Dakota planting zones →

Questions about 58563

What planting zone is ZIP code 58563?

ZIP code 58563 (New Salem, ND) is in USDA hardiness zone 4a on the 2023 map: the coldest night of an average winter reaches −30 to −25 °F (−34.4 to −31.7 °C).

When is the last frost in New Salem, ND?

The median last spring frost (32 °F) near 58563 is May 18; after June 1 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, New Salem 5nw station.

When is the first frost in New Salem, ND?

The median first fall frost near 58563 is September 24, giving a median frost-free growing season of 127 days.

When should I plant tomatoes in 58563?

Start tomato seeds indoors around Mar 23 – Apr 6 and set transplants outside around May 25 – Jun 8, one to three weeks after the median last frost.

How much rain and snow does 58563 get?

About 18.3 inches of precipitation a year and 45 inches of snowfall (NOAA 1991–2020 normals, New Salem 5nw station).

How hot do summers get in New Salem, ND?

The average high peaks at 83 °F in July, with about 16 days a year at 90 °F or more.

What kind of soil does 58563 have?

The USDA soil survey maps Daglum at the center of ZIP 58563: silt loam, moderately well drained, pH about 6.6 (neutral).

Did spring come early in New Salem, ND in 2026?

Spring leaf-out near 58563 came on Apr 21 in 2026, about the same as the 1991–2020 average (Apr 20), according to the USA National Phenology Network Spring Index.

What kind of onions grow in New Salem, ND?

Long-day onions: the longest day near 58563 is 15 h 53 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).