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

Planting zone for 83677 — Yellow Pine, ID

ZIP code 83677 (Yellow Pine, Valley County) is in USDA zone 5a: the coldest winter night averages −20 to −15 °F. The median last spring frost is June 12 and the first fall frost September 11.

Where ZIP 83677 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 frostJun 12

First frostSep 11

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 Yellow Pine, 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 Yellow Pine, ID

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostJune 12median — 50% chance of a later frost

Safe for tender plantsJuly 5only 10% chance of frost after

First fall frostSeptember 11median — 10% chance by Aug 26

Growing season88 daysfrost-free, median

A hard freeze (28 °F) usually ends around May 16 and returns around September 24.

From the NOAA station Yellowpine, ID — 13 miles away, elevation 5,049 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 83677

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · May 1 – May 15

SpinachSow outdoors · May 1 – May 22

Broccoli, cabbageStart indoors · Apr 3 – Apr 17

Broccoli, cabbageTransplant · May 22 – Jun 5

Onion setsPlant outdoors · May 15 – May 29

PotatoesPlant outdoors · May 22 – Jun 5

LettuceSow outdoors · May 15 – May 29

Carrots, beetsSow outdoors · May 22 – Jun 5

TomatoesStart indoors · Apr 17 – May 1

TomatoesTransplant · Jun 19 – Jul 3

Peppers, eggplantStart indoors · Apr 3 – Apr 17

Peppers, eggplantTransplant · Jun 26 – Jul 10

BeansSow outdoors · Jun 19 – Jul 3

Sweet cornSow outdoors · Jun 19 – Jul 3

Cucumbers, squashSow outdoors · Jun 19 – Jul 3

Fall lettuce, spinachSow outdoors · Jul 17 – Jul 31

GarlicPlant cloves · Aug 28 – Oct 2

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (Jun 12) and first fall frost (Sep 11) 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 83677 came on May 12 — 7 days earlier than the 1991–2020 average (May 19).

average
May 192026
May 12

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 Idaho

536 plants native to the lower 48 states, recorded in Idaho, 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 Yellow Pine, ID.

Soil in Yellow Pine, ID

The soil mapped at the center of ZIP 83677 is Lithic Cryorthents family — very gravelly ashy sandy loam, well drained.

TextureVery gravelly ashy sandy 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 matter1.1%low — add compost

Hydrologic groupDwater soaks in very slowly

Farmland classNot prime farmlandUSDA classification

Map unit: Rock outcrop-Rubble Land-Lithic Cryorthents family, very stony complex, 30 to 80 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 83677; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Yellow Pine, ID

Summer high87 °Faverage high, July

Winter low12 °Faverage low, January

Hot days30days a year at 90 °F or more

Freezing nights206nights a year at 32 °F or less

Growing degree days1,601base 50 °F — the season’s usable heat

Longest day15 h 37 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)

Precipitation24 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: Yellowpine, ID (13 mi away); precipitation: Yellowpine, ID (13 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

Lake Fork, ID · 43 mi

New Meadows, ID · 50 mi

832785b

Stanley, ID · 53 mi

Idaho planting zones →

Questions about 83677

What planting zone is ZIP code 83677?

ZIP code 83677 (Yellow Pine, ID) 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 Yellow Pine, ID?

The median last spring frost (32 °F) near 83677 is June 12; after July 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Yellowpine station.

When is the first frost in Yellow Pine, ID?

The median first fall frost near 83677 is September 11, giving a median frost-free growing season of 88 days.

When should I plant tomatoes in 83677?

Start tomato seeds indoors around Apr 17 – May 1 and set transplants outside around Jun 19 – Jul 3, one to three weeks after the median last frost.

How much rain and snow does 83677 get?

About 24 inches of precipitation a year (NOAA 1991–2020 normals, Yellowpine station).

How hot do summers get in Yellow Pine, 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 83677 have?

The USDA soil survey maps Lithic Cryorthents family at the center of ZIP 83677: very gravelly ashy sandy loam, well drained, pH about 5.8 (moderately acidic).

Did spring come early in Yellow Pine, ID in 2026?

Spring leaf-out near 83677 came on May 12 in 2026, 7 days earlier than the 1991–2020 average (May 19), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Yellow Pine, ID?

Long-day onions: the longest day near 83677 is 15 h 37 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 83677 change?

Yes. The 2012 USDA map put 83677 in zone 4b; the 2023 map puts it in zone 5a. The newer map uses 1991–2020 data and more weather stations.