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

Planting zone for 83277 — Springfield, ID

ZIP code 83277 (Springfield, Bingham County) is in USDA zone 5b: the coldest winter night averages −15 to −10 °F. The median last spring frost is May 21 and the first fall frost September 20.

Where ZIP 83277 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.

Zone5b−15 to −10 °F

Coldest night−26.1 to −23.3 °C

Last frostMay 21

First frostSep 20

2012 zone5b

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 5b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Springfield, ID…

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 Springfield, ID

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 21median — 50% chance of a later frost

Safe for tender plantsJune 13only 10% chance of frost after

First fall frostSeptember 20median — 10% chance by Sep 2

Growing season118 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 3 and returns around October 1.

From the NOAA station Aberdeen Exp Stn, ID — 11 miles away, elevation 4,406 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 83277

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Apr 9 – Apr 23

SpinachSow outdoors · Apr 9 – Apr 30

Broccoli, cabbageStart indoors · Mar 12 – Mar 26

Broccoli, cabbageTransplant · Apr 30 – May 14

Onion setsPlant outdoors · Apr 23 – May 7

PotatoesPlant outdoors · Apr 30 – May 14

LettuceSow outdoors · Apr 23 – May 7

Carrots, beetsSow outdoors · Apr 30 – May 14

TomatoesStart indoors · Mar 26 – Apr 9

TomatoesTransplant · May 28 – Jun 11

Peppers, eggplantStart indoors · Mar 12 – Mar 26

Peppers, eggplantTransplant · Jun 4 – Jun 18

BeansSow outdoors · May 28 – Jun 11

Sweet cornSow outdoors · May 28 – Jun 11

Cucumbers, squashSow outdoors · May 28 – Jun 11

Fall lettuce, spinachSow outdoors · Jul 26 – Aug 9

GarlicPlant cloves · Sep 6 – Oct 11

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 21) and first fall frost (Sep 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 83277 came on Mar 19 — 22 days earlier than the 1991–2020 average (Apr 10).

average
Apr 102026
Mar 19

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 5b in Idaho

553 plants native to the lower 48 states, recorded in Idaho, and rated by the USDA to survive −15 °F or colder — the bottom of zone 5b. 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 Springfield, ID.

Soil in Springfield, ID

The soil mapped at the center of ZIP 83277 is Fulmer — loam, poorly drained.

TextureLoama good balance for most vegetables

pH7.9alkaline; most vegetables like 6.0–7.0

DrainagePoorly drainedconsider raised beds

Organic matter5%high

Hydrologic groupB/Dmoderate when drained; wet otherwise

Farmland classPrime farmland if irrigated and drainedUSDA classification

Map unit: Fulmer loam.

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 83277; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Springfield, ID

Summer high87 °Faverage high, July

Winter low14 °Faverage low, January

Hot days30days a year at 90 °F or more

Freezing nights196nights a year at 32 °F or less

Growing degree days2,006base 50 °F — the season’s usable heat

Longest day15 h 22 mindaylight on June 21

Shortest day9 h 00 mindaylight on December 21

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

Precipitation9.6 inper year, rain and melted snow

Snowfall25 inper year; 54 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: Aberdeen Exp Stn, ID (11 mi away); precipitation: Aberdeen Exp Stn, ID (11 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Fort Hall, ID · 13 mi

832215b

Blackfoot, ID · 17 mi

832026a

Pocatello, ID · 18 mi

832066a

Pocatello, ID · 18 mi

832016b

Pocatello, ID · 19 mi

832096a

Pocatello, ID · 20 mi

Idaho planting zones →

Questions about 83277

What planting zone is ZIP code 83277?

ZIP code 83277 (Springfield, ID) is in USDA hardiness zone 5b on the 2023 map: the coldest night of an average winter reaches −15 to −10 °F (−26.1 to −23.3 °C).

When is the last frost in Springfield, ID?

The median last spring frost (32 °F) near 83277 is May 21; after June 13 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Aberdeen Exp Stn station.

When is the first frost in Springfield, ID?

The median first fall frost near 83277 is September 20, giving a median frost-free growing season of 118 days.

When should I plant tomatoes in 83277?

Start tomato seeds indoors around Mar 26 – Apr 9 and set transplants outside around May 28 – Jun 11, one to three weeks after the median last frost.

How much rain and snow does 83277 get?

About 9.6 inches of precipitation a year and 25 inches of snowfall (NOAA 1991–2020 normals, Aberdeen Exp Stn station).

How hot do summers get in Springfield, ID?

The average high peaks at 87 °F in July, with about 30 days a year at 90 °F or more.

What kind of soil does 83277 have?

The USDA soil survey maps Fulmer at the center of ZIP 83277: loam, poorly drained, pH about 7.9 (alkaline).

Did spring come early in Springfield, ID in 2026?

Spring leaf-out near 83277 came on Mar 19 in 2026, 22 days earlier than the 1991–2020 average (Apr 10), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Springfield, ID?

Long-day onions: the longest day near 83277 is 15 h 22 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).