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

Planting zone for 49726 — Drummond Island, MI

ZIP code 49726 (Drummond Island, Chippewa County) is in USDA zone 5a: the coldest winter night averages −20 to −15 °F. The median last spring frost is May 5 and the first fall frost October 20.

Where ZIP 49726 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 frostMay 5

First frostOct 20

2012 zone5a

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 5a means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Drummond Island, MI…

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 Drummond Island, MI

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 5median — 50% chance of a later frost

Safe for tender plantsMay 20only 10% chance of frost after

First fall frostOctober 20median — 10% chance by Oct 6

Growing season167 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 25 and returns around November 1.

From the NOAA station Detour Village, MI — 14 miles away, elevation 594 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 49726

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Mar 24 – Apr 7

SpinachSow outdoors · Mar 24 – Apr 14

Broccoli, cabbageStart indoors · Feb 24 – Mar 10

Broccoli, cabbageTransplant · Apr 14 – Apr 28

Onion setsPlant outdoors · Apr 7 – Apr 21

PotatoesPlant outdoors · Apr 14 – Apr 28

LettuceSow outdoors · Apr 7 – Apr 21

Carrots, beetsSow outdoors · Apr 14 – Apr 28

TomatoesStart indoors · Mar 10 – Mar 24

TomatoesTransplant · May 12 – May 26

Peppers, eggplantStart indoors · Feb 24 – Mar 10

Peppers, eggplantTransplant · May 19 – Jun 2

BeansSow outdoors · May 12 – May 26

Sweet cornSow outdoors · May 12 – May 26

Cucumbers, squashSow outdoors · May 12 – May 26

Fall lettuce, spinachSow outdoors · Aug 25 – Sep 8

GarlicPlant cloves · Oct 6 – Nov 10

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 5) and first fall frost (Oct 20) 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 49726 came on May 6 — 4 days later than the 1991–2020 average (May 2).

average
May 22026
May 6

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 5a in Michigan

551 plants native to the lower 48 states, recorded in Michigan, and rated by the USDA to survive −20 °F or colder — the bottom of zone 5a. Each links to its USDA PLANTS profile.

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 Drummond Island, MI.

Soil in Drummond Island, MI

The soil mapped at the center of ZIP 49726 is Longrie — sandy loam, well drained.

TextureSandy loamdrains and warms fast; dries out and needs more feeding

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

DrainageWell drainednatural drainage class

Organic matter6%high

Hydrologic groupBwater soaks in moderately

Farmland classNot prime farmlandUSDA classification

Map unit: Longrie-Posen 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 49726; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Drummond Island, MI

Summer high75 °Faverage high, July

Winter low9 °Faverage low, January

Hot days1days a year at 90 °F or more

Freezing nights155nights a year at 32 °F or less

Growing degree days1,748base 50 °F — the season’s usable heat

Longest day15 h 45 mindaylight on June 21

Shortest day8 h 38 mindaylight on December 21

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

Precipitation31.9 inper year, rain and melted snow

Snowfall75 inper year; 116 days with snow on the ground

Average high and low, by month

Precipitation by month inches · ❄ = snowfall

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Detour Village, MI (14 mi away); precipitation: Detour Village, MI (14 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

497255b

De Tour Village, MI · 18 mi

497365a

Goetzville, MI · 26 mi

497104b

Barbeau, MI · 33 mi

497195a

Cedarville, MI · 34 mi

497744b

Pickford, MI · 35 mi

497855a

Kincheloe, MI · 40 mi

497524b

Kinross, MI · 42 mi

497834b

Sault Sainte Marie, MI · 43 mi

Michigan planting zones →

Questions about 49726

What planting zone is ZIP code 49726?

ZIP code 49726 (Drummond Island, MI) 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 Drummond Island, MI?

The median last spring frost (32 °F) near 49726 is May 5; after May 20 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Detour Village station.

When is the first frost in Drummond Island, MI?

The median first fall frost near 49726 is October 20, giving a median frost-free growing season of 167 days.

When should I plant tomatoes in 49726?

Start tomato seeds indoors around Mar 10 – Mar 24 and set transplants outside around May 12 – May 26, one to three weeks after the median last frost.

How much rain and snow does 49726 get?

About 31.9 inches of precipitation a year and 75 inches of snowfall (NOAA 1991–2020 normals, Detour Village station).

How hot do summers get in Drummond Island, MI?

The average high peaks at 75 °F in July, with about 1 days a year at 90 °F or more.

What kind of soil does 49726 have?

The USDA soil survey maps Longrie at the center of ZIP 49726: sandy loam, well drained, pH about 5.8 (moderately acidic).

Did spring come early in Drummond Island, MI in 2026?

Spring leaf-out near 49726 came on May 6 in 2026, 4 days later than the 1991–2020 average (May 2), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Drummond Island, MI?

Long-day onions: the longest day near 49726 is 15 h 45 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).