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

Planting zone for 55764 — Marble, MN

ZIP code 55764 (Marble, Itasca County) is in USDA zone 4a: the coldest winter night averages −30 to −25 °F. The median last spring frost is May 17 and the first fall frost September 24.

Where ZIP 55764 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 17
First frostSep 24
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 Marble, 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 Marble, MN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostMay 17median — 50% chance of a later frost
Safe for tender plantsMay 31only 10% chance of frost after
First fall frostSeptember 24median — 10% chance by Sep 10
Growing season130 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 6 and returns around October 5.

From the NOAA station Grand Rpds Forest Lab, MN — 11 miles away, elevation 1,309 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 55764

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Apr 5 – Apr 19
SpinachSow outdoors · Apr 5 – Apr 26
Broccoli, cabbageStart indoors · Mar 8 – Mar 22
Broccoli, cabbageTransplant · Apr 26 – May 10
Onion setsPlant outdoors · Apr 19 – May 3
PotatoesPlant outdoors · Apr 26 – May 10
LettuceSow outdoors · Apr 19 – May 3
Carrots, beetsSow outdoors · Apr 26 – May 10
TomatoesStart indoors · Mar 22 – Apr 5
TomatoesTransplant · May 24 – Jun 7
Peppers, eggplantStart indoors · Mar 8 – Mar 22
Peppers, eggplantTransplant · May 31 – Jun 14
BeansSow outdoors · May 24 – Jun 7
Sweet cornSow outdoors · May 24 – Jun 7
Cucumbers, squashSow outdoors · May 24 – Jun 7
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 17) 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 55764 came on Apr 23 — 3 days earlier than the 1991–2020 average (Apr 26).

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 Marble, MN

The center of ZIP 55764 is mapped as Pits, mine: built-over ground without natural soil data. Garden soil here is usually imported or disturbed — test before you plant.

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 55764; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Marble, MN

Summer high80 °Faverage high, July
Winter low−1 °Faverage low, January
Hot days6days a year at 90 °F or more
Freezing nights187nights a year at 32 °F or less
Growing degree days1,866base 50 °F — the season’s usable heat
Longest day15 h 57 mindaylight on June 21
Shortest day8 h 28 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation29.4 inper year, rain and melted snow
Snowfall60 inper year; 129 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 19 °F, low -1 °F 19°−1° JanFebruary: average high 26 °F, low 2 °F 26°2° FebMarch: average high 39 °F, low 15 °F 39°15° MarApril: average high 53 °F, low 28 °F 53°28° AprMay: average high 66 °F, low 40 °F 66°40° MayJune: average high 75 °F, low 51 °F 75°51° JunJuly: average high 80 °F, low 55 °F 80°55° JulAugust: average high 78 °F, low 53 °F 78°53° AugSeptember: average high 68 °F, low 45 °F 68°45° SepOctober: average high 53 °F, low 33 °F 53°33° OctNovember: average high 36 °F, low 20 °F 36°20° NovDecember: average high 23 °F, low 7 °F 23°7° Dec

Precipitation by month inches · ❄ = snowfall

0″1″2″3″4″5″January: 0.97 in precipitation, 12.2 in snowfall 1.0❄12 JanFebruary: 0.85 in precipitation, 9.7 in snowfall 0.8❄10 FebMarch: 1.33 in precipitation, 7.5 in snowfall 1.3❄8 MarApril: 2.10 in precipitation, 5.6 in snowfall 2.1❄6 AprMay: 3.23 in precipitation, 0.2 in snowfall 3.2 MayJune: 4.70 in precipitation 4.7 JunJuly: 4.14 in precipitation 4.1 JulAugust: 3.40 in precipitation 3.4 AugSeptember: 3.05 in precipitation 3.0 SepOctober: 2.79 in precipitation, 2 in snowfall 2.8❄2 OctNovember: 1.59 in precipitation, 9 in snowfall 1.6❄9 NovDecember: 1.23 in precipitation, 13.4 in snowfall 1.2❄13 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Grand Rpds Forest Lab, MN (11 mi away); precipitation: Grand Rpds Forest Lab, MN (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

557164a
Calumet, MN · 1 mi
557864a
Taconite, MN · 4 mi
557093b
Bovey, MN · 6 mi
557754a
Pengilly, MN · 6 mi
557224a
Coleraine, MN · 8 mi
557534a
Keewatin, MN · 11 mi
557693b
Nashwauk, MN · 11 mi
557444a
Grand Rapids, MN · 12 mi

Minnesota planting zones →

Questions about 55764

What planting zone is ZIP code 55764?

ZIP code 55764 (Marble, MN) 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 Marble, MN?

The median last spring frost (32 °F) near 55764 is May 17; after May 31 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Grand Rpds Forest Lab station.

When is the first frost in Marble, MN?

The median first fall frost near 55764 is September 24, giving a median frost-free growing season of 130 days.

When should I plant tomatoes in 55764?

Start tomato seeds indoors around Mar 22 – Apr 5 and set transplants outside around May 24 – Jun 7, one to three weeks after the median last frost.

How much rain and snow does 55764 get?

About 29.4 inches of precipitation a year and 60 inches of snowfall (NOAA 1991–2020 normals, Grand Rpds Forest Lab station).

How hot do summers get in Marble, MN?

The average high peaks at 80 °F in July, with about 6 days a year at 90 °F or more.

Did spring come early in Marble, MN in 2026?

Spring leaf-out near 55764 came on Apr 23 in 2026, 3 days earlier than the 1991–2020 average (Apr 26), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Marble, MN?

Long-day onions: the longest day near 55764 is 15 h 57 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 55764 change?

Yes. The 2012 USDA map put 55764 in zone 3b; the 2023 map puts it in zone 4a. The newer map uses 1991–2020 data and more weather stations.