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

Planting zone for 56667 — Puposky, MN

ZIP code 56667 (Puposky, Beltrami County) is in USDA zone 3b: the coldest winter night averages −35 to −30 °F. The median last spring frost is May 12 and the first fall frost October 4.

Where ZIP 56667 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.

Zone3b−35 to −30 °F
Coldest night−37.2 to −34.4 °C
Last frostMay 12
First frostOct 4
2012 zone3b

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 3b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Puposky, MN…

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 Puposky, MN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 12median — 50% chance of a later frost
Safe for tender plantsMay 30only 10% chance of frost after
First fall frostOctober 4median — 10% chance by Sep 19
Growing season142 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 2 and returns around October 15.

From the NOAA station Red Lake Indian Agcy, MN — 11 miles away, elevation 1,217 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 56667

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 31 – Apr 14
SpinachSow outdoors · Mar 31 – Apr 21
Broccoli, cabbageStart indoors · Mar 3 – Mar 17
Broccoli, cabbageTransplant · Apr 21 – May 5
Onion setsPlant outdoors · Apr 14 – Apr 28
PotatoesPlant outdoors · Apr 21 – May 5
LettuceSow outdoors · Apr 14 – Apr 28
Carrots, beetsSow outdoors · Apr 21 – May 5
TomatoesStart indoors · Mar 17 – Mar 31
TomatoesTransplant · May 19 – Jun 2
Peppers, eggplantStart indoors · Mar 3 – Mar 17
Peppers, eggplantTransplant · May 26 – Jun 9
BeansSow outdoors · May 19 – Jun 2
Sweet cornSow outdoors · May 19 – Jun 2
Cucumbers, squashSow outdoors · May 19 – Jun 2
Fall lettuce, spinachSow outdoors · Aug 9 – Aug 23
GarlicPlant cloves · Sep 20 – Oct 25
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 12) and first fall frost (Oct 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 56667 came on Apr 23 — 4 days earlier than the 1991–2020 average (Apr 27).

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 3b in Minnesota

287 plants native to the lower 48 states, recorded in Minnesota, and rated by the USDA to survive −35 °F or colder — the bottom of zone 3b. Each links to its USDA PLANTS profile.

Trees 33

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 °Fbalsam fir60 ft · blooms mid summer · low shade tolerance · to −43 °Fbalsam poplar80 ft · blooms late spring · high shade tolerance · to −79 °Fbigtooth aspen65 ft · blooms mid spring · high shade tolerance · to −43 °F

Shrubs 50

Allegheny serviceberry35 ft · blooms early spring · low shade tolerance · to −38 °Falternateleaf dogwood25 ft · blooms mid spring · low shade tolerance · to −47 °FAmerican black currant3 ft · blooms early spring · to −46 °FAmerican mountain ash40 ft · blooms early summer · medium shade tolerance · to −38 °FAmerican plum24 ft · blooms mid spring · high shade tolerance · to −38 °Fbeaked hazelnut15 ft · blooms early spring · low shade tolerance · to −47 °F

Wildflowers & perennials 102

alkali buttercup1 ft · blooms late spring · low shade tolerance · to −38 °Falpine bistort1 ft · blooms mid spring · high shade tolerance · to −38 °FAmerican licorice4 ft · blooms late spring · medium shade tolerance · to −38 °FAmerican lotus3 ft · blooms mid summer · high shade tolerance · to −36 °FAmerican speedwell0.8 ft · blooms mid summer · low shade tolerance · to −38 °FAmerican vetch1.3 ft · blooms late spring · high shade tolerance · to −38 °F

Grasses 93

alkali cordgrass3 ft · blooms late summer · high shade tolerance · to −38 °Fawlfruit sedge4 ft · blooms mid spring · low shade tolerance · to −38 °Fbasin wildrye5 ft · blooms early spring · high shade tolerance · to −43 °Fbeaked sedge4 ft · blooms late spring · low shade tolerance · to −38 °FBebb's sedge3 ft · blooms late spring · low shade tolerance · to −38 °FBicknell's sedge3 ft · blooms late spring · low shade tolerance · to −38 °F

Vines 2

American bittersweet15 ft · blooms spring · low shade tolerance · to −38 °Fdevil's darning needles15 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 Puposky, MN.

Soil in Puposky, MN

The soil mapped at the center of ZIP 56667 is Cathro — muck, very poorly drained.

TextureMucktop layer
DrainageVery poorly drainedconsider raised beds
Organic matter65%high
Hydrologic groupB/Dmoderate when drained; wet otherwise
Farmland classNot prime farmlandUSDA classification

Map unit: Cathro muck, occasionally ponded, 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 56667; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Puposky, MN

Summer high77 °Faverage high, July
Winter low−3 °Faverage low, January
Hot days4days a year at 90 °F or more
Freezing nights187nights a year at 32 °F or less
Growing degree days1,958base 50 °F — the season’s usable heat
Longest day16 h 00 mindaylight on June 21
Shortest day8 h 24 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation22.8 inper year, rain and melted snow

Average high and low, by month

−10°0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 16 °F, low -3 °F 16°−3° JanFebruary: average high 21 °F, low 1 °F 21°1° FebMarch: average high 34 °F, low 15 °F 34°15° MarApril: average high 48 °F, low 29 °F 48°29° AprMay: average high 62 °F, low 43 °F 62°43° MayJune: average high 72 °F, low 54 °F 72°54° JunJuly: average high 77 °F, low 60 °F 77°60° JulAugust: average high 76 °F, low 57 °F 76°57° AugSeptember: average high 66 °F, low 48 °F 66°48° SepOctober: average high 51 °F, low 36 °F 51°36° OctNovember: average high 34 °F, low 21 °F 34°21° NovDecember: average high 21 °F, low 6 °F 21°6° Dec

Precipitation by month inches

0″1″2″3″4″January: 1.03 in precipitation 1.0 JanFebruary: 0.55 in precipitation 0.6 FebMarch: 0.81 in precipitation 0.8 MarApril: 1.28 in precipitation 1.3 AprMay: 2.91 in precipitation 2.9 MayJune: 3.61 in precipitation 3.6 JunJuly: 3.51 in precipitation 3.5 JulAugust: 2.78 in precipitation 2.8 AugSeptember: 2.50 in precipitation 2.5 SepOctober: 2.34 in precipitation 2.3 OctNovember: 1.05 in precipitation 1.1 NovDecember: 0.40 in precipitation 0.4 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Red Lake Indian Agcy, MN (11 mi away); precipitation: Red Lake Indian Agcy, MN (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 3b.

566703b
Redby, MN · 9 mi
566833b
Tenstrike, MN · 10 mi
566523b
Leonard, MN · 12 mi
566873b
Wilton, MN · 15 mi
566013b
Bemidji, MN · 16 mi
566473b
Hines, MN · 16 mi
566763b
Shevlin, MN · 18 mi
566193b
Bemidji, MN · 18 mi

Minnesota planting zones →

Questions about 56667

What planting zone is ZIP code 56667?

ZIP code 56667 (Puposky, MN) is in USDA hardiness zone 3b on the 2023 map: the coldest night of an average winter reaches −35 to −30 °F (−37.2 to −34.4 °C).

When is the last frost in Puposky, MN?

The median last spring frost (32 °F) near 56667 is May 12; after May 30 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Red Lake Indian Agcy station.

When is the first frost in Puposky, MN?

The median first fall frost near 56667 is October 4, giving a median frost-free growing season of 142 days.

When should I plant tomatoes in 56667?

Start tomato seeds indoors around Mar 17 – Mar 31 and set transplants outside around May 19 – Jun 2, one to three weeks after the median last frost.

How much rain and snow does 56667 get?

About 22.8 inches of precipitation a year (NOAA 1991–2020 normals, Red Lake Indian Agcy station).

How hot do summers get in Puposky, MN?

The average high peaks at 77 °F in July, with about 4 days a year at 90 °F or more.

What kind of soil does 56667 have?

The USDA soil survey maps Cathro at the center of ZIP 56667: muck, very poorly drained.

Did spring come early in Puposky, MN in 2026?

Spring leaf-out near 56667 came on Apr 23 in 2026, 4 days earlier than the 1991–2020 average (Apr 27), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Puposky, MN?

Long-day onions: the longest day near 56667 is 16 h 00 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).