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

Planting zone for 59201 — Wolf Point, MT

ZIP code 59201 (Wolf Point, Roosevelt County) is in USDA zone 4a: the coldest winter night averages −30 to −25 °F. The median last spring frost is May 8 and the first fall frost September 28.

Where ZIP 59201 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 8
First frostSep 28
2012 zone3b

Was 3b 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 4a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Wolf Point, MT…

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 Wolf Point, MT

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 8median — 50% chance of a later frost
Safe for tender plantsMay 20only 10% chance of frost after
First fall frostSeptember 28median — 10% chance by Sep 15
Growing season143 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 29 and returns around October 7.

From the NOAA station Wolf Pt, MT — 3 miles away, elevation 2,090 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 59201

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 27 – Apr 10
SpinachSow outdoors · Mar 27 – Apr 17
Broccoli, cabbageStart indoors · Feb 27 – Mar 13
Broccoli, cabbageTransplant · Apr 17 – May 1
Onion setsPlant outdoors · Apr 10 – Apr 24
PotatoesPlant outdoors · Apr 17 – May 1
LettuceSow outdoors · Apr 10 – Apr 24
Carrots, beetsSow outdoors · Apr 17 – May 1
TomatoesStart indoors · Mar 13 – Mar 27
TomatoesTransplant · May 15 – May 29
Peppers, eggplantStart indoors · Feb 27 – Mar 13
Peppers, eggplantTransplant · May 22 – Jun 5
BeansSow outdoors · May 15 – May 29
Sweet cornSow outdoors · May 15 – May 29
Cucumbers, squashSow outdoors · May 15 – May 29
Fall lettuce, spinachSow outdoors · Aug 3 – Aug 17
GarlicPlant cloves · Sep 14 – Oct 19
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 8) and first fall frost (Sep 28) 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 59201 came on Apr 16 — about the same time as the 1991–2020 average (Apr 17).

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 Montana

439 plants native to the lower 48 states, recorded in Montana, 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 elm120 ft · blooms early spring · medium shade tolerance · to −46 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fblack locust60 ft · blooms spring · high shade tolerance · to −37 °Fboxelder60 ft · blooms early spring · low shade tolerance · to −46 °FDouglas-fir200 ft · blooms mid spring · medium shade tolerance · to −33 °Feastern cottonwood190 ft · blooms spring · high shade tolerance · to −43 °F

Shrubs 77

alderleaf buckthorn3 ft · blooms late spring · low shade tolerance · to −33 °Falderleaf mountain mahogany15 ft · blooms late spring · medium shade tolerance · to −41 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °Fantelope bitterbrush6 ft · blooms early spring · medium shade tolerance · to −36 °FBarclay's willow15 ft · high shade tolerance · to −43 °F

Wildflowers & perennials 189

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °Falpine mountainsorrel1 ft · blooms mid summer · medium shade tolerance · to −43 °Falpine sweetvetch2 ft · blooms early summer · high shade tolerance · to −62 °FAmerican bistort1.5 ft · blooms mid spring · high shade tolerance · to −38 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °F

Grasses 141

Alaska oniongrass3 ft · blooms mid spring · low shade tolerance · to −33 °Falkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Falkali sacaton3 ft · blooms mid summer · high shade tolerance · to −38 °FAlpine Meadow-Foxtail0.5 ft · blooms mid spring · medium shade tolerance · to −33 °Falpine timothy1.4 ft · blooms late spring · medium shade tolerance · to −43 °Fanalogue sedge1.5 ft · blooms late spring · medium shade tolerance · to −38 °F

Vines 3

American bittersweet15 ft · blooms spring · low 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 Wolf Point, MT.

Soil in Wolf Point, MT

The soil mapped at the center of ZIP 59201 is Vida — loam, well drained.

TextureLoama good balance for most vegetables
pH7.2neutral; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter3.5%moderate
Hydrologic groupCwater soaks in slowly
Farmland classNot prime farmlandUSDA classification

Map unit: Vida-Zahill loams, 2 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 59201; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Wolf Point, MT

Summer high87 °Faverage high, July
Winter low6 °Faverage low, January
Hot days36days a year at 90 °F or more
Freezing nights180nights a year at 32 °F or less
Growing degree days2,623base 50 °F — the season’s usable heat
Longest day16 h 04 mindaylight on June 21
Shortest day8 h 21 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation14.3 inper year, rain and melted snow

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°100°32 °FJanuary: average high 25 °F, low 6 °F 25°6° JanFebruary: average high 31 °F, low 10 °F 31°10° FebMarch: average high 45 °F, low 22 °F 45°22° MarApril: average high 60 °F, low 33 °F 60°33° AprMay: average high 70 °F, low 44 °F 70°44° MayJune: average high 78 °F, low 53 °F 78°53° JunJuly: average high 87 °F, low 59 °F 87°59° JulAugust: average high 86 °F, low 58 °F 86°58° AugSeptember: average high 76 °F, low 47 °F 76°47° SepOctober: average high 60 °F, low 35 °F 60°35° OctNovember: average high 43 °F, low 22 °F 43°22° NovDecember: average high 29 °F, low 10 °F 29°10° Dec

Precipitation by month inches

0″1″2″3″4″January: 0.41 in precipitation 0.4 JanFebruary: 0.27 in precipitation 0.3 FebMarch: 0.46 in precipitation 0.5 MarApril: 0.91 in precipitation 0.9 AprMay: 2.10 in precipitation 2.1 MayJune: 3.54 in precipitation 3.5 JunJuly: 1.81 in precipitation 1.8 JulAugust: 1.81 in precipitation 1.8 AugSeptember: 1.40 in precipitation 1.4 SepOctober: 0.85 in precipitation 0.8 OctNovember: 0.42 in precipitation 0.4 NovDecember: 0.35 in precipitation 0.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Wolf Pt, MT (3 mi away); precipitation: Wolf Pt, MT (3 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

592254a
Frazer, MT · 18 mi
592554a
Poplar, MT · 23 mi
592744a
Vida, MT · 23 mi
592484a
Nashua, MT · 30 mi
592234a
Fort Peck, MT · 31 mi
592594a
Richey, MT · 40 mi
592533b
Peerless, MT · 42 mi
592154a
Circle, MT · 44 mi

Montana planting zones →

Questions about 59201

What planting zone is ZIP code 59201?

ZIP code 59201 (Wolf Point, MT) 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 Wolf Point, MT?

The median last spring frost (32 °F) near 59201 is May 8; after May 20 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Wolf Pt station.

When is the first frost in Wolf Point, MT?

The median first fall frost near 59201 is September 28, giving a median frost-free growing season of 143 days.

When should I plant tomatoes in 59201?

Start tomato seeds indoors around Mar 13 – Mar 27 and set transplants outside around May 15 – May 29, one to three weeks after the median last frost.

How much rain and snow does 59201 get?

About 14.3 inches of precipitation a year (NOAA 1991–2020 normals, Wolf Pt station).

How hot do summers get in Wolf Point, MT?

The average high peaks at 87 °F in July, with about 36 days a year at 90 °F or more.

What kind of soil does 59201 have?

The USDA soil survey maps Vida at the center of ZIP 59201: loam, well drained, pH about 7.2 (neutral).

Did spring come early in Wolf Point, MT in 2026?

Spring leaf-out near 59201 came on Apr 16 in 2026, about the same as the 1991–2020 average (Apr 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Wolf Point, MT?

Long-day onions: the longest day near 59201 is 16 h 04 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 59201 change?

Yes. The 2012 USDA map put 59201 in zone 3b; the 2023 map puts it in zone 4a. The newer map uses 1991–2020 data and more weather stations.