Data: 2023 USDA zones (PRISM/OSU) · NOAA 1991–2020 normals · updated Oct 29, 2026

Planting zone for 55432 — Minneapolis, MN

ZIP code 55432 (Minneapolis, Anoka County) is in USDA zone 5a: the coldest winter night averages −20 to −15 °F. The median last spring frost is April 30 and the first fall frost October 8.

Where ZIP 55432 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.

Zone5a−20 to −15 °F

Coldest night−28.9 to −26.1 °C

Last frostApr 30

First frostOct 8

2012 zone4b

Was 4b 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 5a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Minneapolis, 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 Minneapolis, MN

JanFebMarAprMayJunJulAugSepOctNovDec

Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free

Last spring frostApril 30median — 50% chance of a later frost

Safe for tender plantsMay 17only 10% chance of frost after

First fall frostOctober 8median — 10% chance by Sep 26

Growing season159 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 20 and returns around October 18.

From the NOAA station Mpls Crystal Airport, MN — 6 miles away, elevation 860 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 55432

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 19 – Apr 2

SpinachSow outdoors · Mar 19 – Apr 9

Broccoli, cabbageStart indoors · Feb 19 – Mar 5

Broccoli, cabbageTransplant · Apr 9 – Apr 23

Onion setsPlant outdoors · Apr 2 – Apr 16

PotatoesPlant outdoors · Apr 9 – Apr 23

LettuceSow outdoors · Apr 2 – Apr 16

Carrots, beetsSow outdoors · Apr 9 – Apr 23

TomatoesStart indoors · Mar 5 – Mar 19

TomatoesTransplant · May 7 – May 21

Peppers, eggplantStart indoors · Feb 19 – Mar 5

Peppers, eggplantTransplant · May 14 – May 28

BeansSow outdoors · May 7 – May 21

Sweet cornSow outdoors · May 7 – May 21

Cucumbers, squashSow outdoors · May 7 – May 21

Fall lettuce, spinachSow outdoors · Aug 13 – Aug 27

GarlicPlant cloves · Sep 24 – Oct 29

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 30) and first fall frost (Oct 8) 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 55432 came on Apr 9 — 6 days earlier than the 1991–2020 average (Apr 15).

average
Apr 152026
Apr 9

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 Minneapolis, MN

The soil mapped at the center of ZIP 55432 is Zimmerman — fine sand, excessively drained. Much of the area is built over (urban land); this is the natural soil underneath.

TextureFine sanddrains and warms fast; dries out and needs more feeding

pH5.8moderately acidic; most vegetables like 6.0–7.0

DrainageExcessively drainednatural drainage class

Organic matter1.5%low — add compost

Hydrologic groupAwater soaks in fast

Farmland classNot prime farmlandUSDA classification

Map unit: Urban land-Zimmerman complex, 0 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 55432; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Minneapolis, MN

Summer high83 °Faverage high, July

Winter low7 °Faverage low, January

Hot days12days a year at 90 °F or more

Freezing nights155nights a year at 32 °F or less

Growing degree days2,755base 50 °F — the season’s usable heat

Longest day15 h 38 mindaylight on June 21

Shortest day8 h 45 mindaylight on December 21

Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)

Precipitation30.7 inper year, rain and melted snow

Average high and low, by month

Precipitation by month inches

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Mpls Crystal Airport, MN (6 mi away); precipitation: Mpls Crystal Airport, MN (6 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 5a.

554445a

Minneapolis, MN · 3 mi

554215a

Minneapolis, MN · 3 mi

551125a

Saint Paul, MN · 3 mi

554305a

Minneapolis, MN · 3 mi

554435a

Minneapolis, MN · 4 mi

554345a

Minneapolis, MN · 5 mi

554295a

Minneapolis, MN · 5 mi

554185a

Minneapolis, MN · 5 mi

All 66 ZIP codes in Minneapolis → · Minnesota planting zones →

Questions about 55432

What planting zone is ZIP code 55432?

ZIP code 55432 (Minneapolis, MN) is in USDA hardiness zone 5a on the 2023 map: the coldest night of an average winter reaches −20 to −15 °F (−28.9 to −26.1 °C).

When is the last frost in Minneapolis, MN?

The median last spring frost (32 °F) near 55432 is April 30; after May 17 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Mpls Crystal Airport station.

When is the first frost in Minneapolis, MN?

The median first fall frost near 55432 is October 8, giving a median frost-free growing season of 159 days.

When should I plant tomatoes in 55432?

Start tomato seeds indoors around Mar 5 – Mar 19 and set transplants outside around May 7 – May 21, one to three weeks after the median last frost.

How much rain and snow does 55432 get?

About 30.7 inches of precipitation a year (NOAA 1991–2020 normals, Mpls Crystal Airport station).

How hot do summers get in Minneapolis, MN?

The average high peaks at 83 °F in July, with about 12 days a year at 90 °F or more.

What kind of soil does 55432 have?

The USDA soil survey maps Zimmerman at the center of ZIP 55432: fine sand, excessively drained, pH about 5.8 (moderately acidic).

Did spring come early in Minneapolis, MN in 2026?

Spring leaf-out near 55432 came on Apr 9 in 2026, 6 days earlier than the 1991–2020 average (Apr 15), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Minneapolis, MN?

Long-day onions: the longest day near 55432 is 15 h 38 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 55432 change?

Yes. The 2012 USDA map put 55432 in zone 4b; the 2023 map puts it in zone 5a. The newer map uses 1991–2020 data and more weather stations.