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

Planting zone for 55307 — Arlington, MN

ZIP code 55307 (Arlington, Sibley County) is in USDA zone 4b: the coldest winter night averages −25 to −20 °F. The median last spring frost is April 24 and the first fall frost October 15.

Where ZIP 55307 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.

Zone4b−25 to −20 °F
Coldest night−31.7 to −28.9 °C
Last frostApr 24
First frostOct 15
2012 zone4b

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 4b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Arlington, 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 Arlington, MN

JanFebMarAprMayJunJulAugSepOctNovDec
Blue: frost possible · fading green: frost risk falling or rising (90% → 10%) · green: frost-free
Last spring frostApril 24median — 50% chance of a later frost
Safe for tender plantsMay 8only 10% chance of frost after
First fall frostOctober 15median — 10% chance by Sep 30
Growing season170 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 14 and returns around October 24.

From the NOAA station Gaylord, MN — 6 miles away, elevation 1,020 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 55307

JanFebMarAprMayJunJulAugSepOctNovDec
PeasSow outdoors · Mar 13 – Mar 27
SpinachSow outdoors · Mar 13 – Apr 3
Broccoli, cabbageStart indoors · Feb 13 – Feb 27
Broccoli, cabbageTransplant · Apr 3 – Apr 17
Onion setsPlant outdoors · Mar 27 – Apr 10
PotatoesPlant outdoors · Apr 3 – Apr 17
LettuceSow outdoors · Mar 27 – Apr 10
Carrots, beetsSow outdoors · Apr 3 – Apr 17
TomatoesStart indoors · Feb 27 – Mar 13
TomatoesTransplant · May 1 – May 15
Peppers, eggplantStart indoors · Feb 13 – Feb 27
Peppers, eggplantTransplant · May 8 – May 22
BeansSow outdoors · May 1 – May 15
Sweet cornSow outdoors · May 1 – May 15
Cucumbers, squashSow outdoors · May 1 – May 15
Fall lettuce, spinachSow outdoors · Aug 20 – Sep 3
GarlicPlant cloves · Oct 1 – Nov 5
Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Apr 24) and first fall frost (Oct 15) 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 55307 came on Apr 11 — 6 days earlier than 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).

Soil in Arlington, MN

The soil mapped at the center of ZIP 55307 is Canisteo — clay loam, poorly drained.

TextureClay loamholds water and nutrients; slow to drain and warm up
pH7.5slightly alkaline; most vegetables like 6.0–7.0
DrainagePoorly drainedconsider raised beds
Organic matter7%high
Hydrologic groupC/Dslow when drained; wet otherwise
Farmland classPrime farmland if drainedUSDA classification

Map unit: Canisteo-Glencoe complex, 0 to 2 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 55307; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Arlington, MN

Summer high82 °Faverage high, July
Winter low6 °Faverage low, January
Hot days12days a year at 90 °F or more
Freezing nights161nights a year at 32 °F or less
Growing degree days2,710base 50 °F — the season’s usable heat
Longest day15 h 34 mindaylight on June 21
Shortest day8 h 49 mindaylight on December 21
Onions to growLong-daysummer days reach 15+ hours, enough for long-day varieties (intermediate types work too)
Precipitation32.1 inper year, rain and melted snow

Average high and low, by month

0°10°20°30°40°50°60°70°80°90°32 °FJanuary: average high 21 °F, low 6 °F 21°6° JanFebruary: average high 26 °F, low 9 °F 26°9° FebMarch: average high 38 °F, low 22 °F 38°22° MarApril: average high 54 °F, low 35 °F 54°35° AprMay: average high 68 °F, low 48 °F 68°48° MayJune: average high 78 °F, low 59 °F 78°59° JunJuly: average high 82 °F, low 63 °F 82°63° JulAugust: average high 80 °F, low 60 °F 80°60° AugSeptember: average high 72 °F, low 51 °F 72°51° SepOctober: average high 57 °F, low 38 °F 57°38° OctNovember: average high 41 °F, low 25 °F 41°25° NovDecember: average high 27 °F, low 13 °F 27°13° Dec

Precipitation by month inches

0″1″2″3″4″5″6″January: 0.73 in precipitation 0.7 JanFebruary: 0.81 in precipitation 0.8 FebMarch: 1.57 in precipitation 1.6 MarApril: 2.84 in precipitation 2.8 AprMay: 4.42 in precipitation 4.4 MayJune: 5.10 in precipitation 5.1 JunJuly: 3.74 in precipitation 3.7 JulAugust: 4.44 in precipitation 4.4 AugSeptember: 3.29 in precipitation 3.3 SepOctober: 2.56 in precipitation 2.6 OctNovember: 1.57 in precipitation 1.6 NovDecember: 1.04 in precipitation 1.0 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Gaylord, MN (6 mi away); precipitation: Glencoe 0.3 Wsw, MN (12 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

All 8 nearest ZIP codes share zone 4b.

553344b
Gaylord, MN · 6 mi
553384b
Green Isle, MN · 8 mi
553664b
New Auburn, MN · 8 mi
560444b
Henderson, MN · 8 mi
553394b
Hamburg, MN · 11 mi
553364b
Glencoe, MN · 12 mi
553964b
Winthrop, MN · 13 mi
553704b
Plato, MN · 13 mi

Minnesota planting zones →

Questions about 55307

What planting zone is ZIP code 55307?

ZIP code 55307 (Arlington, MN) is in USDA hardiness zone 4b on the 2023 map: the coldest night of an average winter reaches −25 to −20 °F (−31.7 to −28.9 °C).

When is the last frost in Arlington, MN?

The median last spring frost (32 °F) near 55307 is April 24; after May 8 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Gaylord station.

When is the first frost in Arlington, MN?

The median first fall frost near 55307 is October 15, giving a median frost-free growing season of 170 days.

When should I plant tomatoes in 55307?

Start tomato seeds indoors around Feb 27 – Mar 13 and set transplants outside around May 1 – May 15, one to three weeks after the median last frost.

How much rain and snow does 55307 get?

About 32.1 inches of precipitation a year (NOAA 1991–2020 normals, Glencoe 0.3 Wsw station).

How hot do summers get in Arlington, MN?

The average high peaks at 82 °F in July, with about 12 days a year at 90 °F or more.

What kind of soil does 55307 have?

The USDA soil survey maps Canisteo at the center of ZIP 55307: clay loam, poorly drained, pH about 7.5 (slightly alkaline).

Did spring come early in Arlington, MN in 2026?

Spring leaf-out near 55307 came on Apr 11 in 2026, 6 days earlier than the 1991–2020 average (Apr 17), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Arlington, MN?

Long-day onions: the longest day near 55307 is 15 h 34 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).