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

Planting zone for 83287 — Fish Haven, ID

ZIP code 83287 (Fish Haven, Bear Lake County) is in USDA zone 5b: the coldest winter night averages −15 to −10 °F. The median last spring frost is May 15 and the first fall frost October 4.

Where ZIP 83287 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 15

First frostOct 4

2012 zone5a

Was 5a 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 5b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Fish Haven, 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 Fish Haven, ID

JanFebMarAprMayJunJulAugSepOctNovDec

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

Last spring frostMay 15median — 50% chance of a later frost

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

First fall frostOctober 4median — 10% chance by Sep 22

Growing season140 daysfrost-free, median

A hard freeze (28 °F) usually ends around April 30 and returns around October 15.

From the NOAA station Bear Lake Sp, UT — 5 miles away, elevation 5,929 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 83287

JanFebMarAprMayJunJulAugSepOctNovDec

PeasSow outdoors · Apr 3 – Apr 17

SpinachSow outdoors · Apr 3 – Apr 24

Broccoli, cabbageStart indoors · Mar 6 – Mar 20

Broccoli, cabbageTransplant · Apr 24 – May 8

Onion setsPlant outdoors · Apr 17 – May 1

PotatoesPlant outdoors · Apr 24 – May 8

LettuceSow outdoors · Apr 17 – May 1

Carrots, beetsSow outdoors · Apr 24 – May 8

TomatoesStart indoors · Mar 20 – Apr 3

TomatoesTransplant · May 22 – Jun 5

Peppers, eggplantStart indoors · Mar 6 – Mar 20

Peppers, eggplantTransplant · May 29 – Jun 12

BeansSow outdoors · May 22 – Jun 5

Sweet cornSow outdoors · May 22 – Jun 5

Cucumbers, squashSow outdoors · May 22 – Jun 5

Fall lettuce, spinachSow outdoors · Aug 9 – Aug 23

GarlicPlant cloves · Sep 20 – Oct 25

Start seeds indoorsSow or plant outdoorsFall plantingMedian last & first frost

Counted from the median last spring frost (May 15) and first fall frost (Oct 4) 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 83287 came on Apr 11 — 23 days earlier than the 1991–2020 average (May 4).

average
May 42026
Apr 11

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 Fish Haven, ID

The soil mapped at the center of ZIP 83287 is Spearhead — moderately decomposed plant material, well drained.

TextureModerately decomposed plant materialtop layer

pH5.0strongly acidic; most vegetables like 6.0–7.0

DrainageWell drainednatural drainage class

Organic matter70%high

Hydrologic groupBwater soaks in moderately

Farmland classNot prime farmlandUSDA classification

Map unit: Spearhead family, very stony surface-Broad Canyon, very stony surface-Ezbin complex, 30 to 60 percent slopes, MLRA 47.

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 83287; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Fish Haven, ID

Summer high84 °Faverage high, July

Winter low16 °Faverage low, January

Hot days9days a year at 90 °F or more

Freezing nights174nights a year at 32 °F or less

Growing degree days1,932base 50 °F — the season’s usable heat

Longest day15 h 15 mindaylight on June 21

Shortest day9 h 07 mindaylight on December 21

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

Precipitation16.5 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: Bear Lake Sp, UT (5 mi away); precipitation: Bear Lake Sp, UT (5 mi away). Daylight is calculated from latitude.

Nearby ZIP codes

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

832725a

Saint Charles, ID · 6 mi

840285a

Garden City, UT · 7 mi

832235a

Bloomington, ID · 11 mi

Idaho planting zones →

Questions about 83287

What planting zone is ZIP code 83287?

ZIP code 83287 (Fish Haven, 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 Fish Haven, ID?

The median last spring frost (32 °F) near 83287 is May 15; after June 5 there is only a 10% chance of frost. Data: NOAA 1991–2020 normals, Bear Lake Sp station.

When is the first frost in Fish Haven, ID?

The median first fall frost near 83287 is October 4, giving a median frost-free growing season of 140 days.

When should I plant tomatoes in 83287?

Start tomato seeds indoors around Mar 20 – Apr 3 and set transplants outside around May 22 – Jun 5, one to three weeks after the median last frost.

How much rain and snow does 83287 get?

About 16.5 inches of precipitation a year (NOAA 1991–2020 normals, Bear Lake Sp station).

How hot do summers get in Fish Haven, ID?

The average high peaks at 84 °F in July, with about 9 days a year at 90 °F or more.

What kind of soil does 83287 have?

The USDA soil survey maps Spearhead at the center of ZIP 83287: moderately decomposed plant material, well drained, pH about 5.0 (strongly acidic).

Did spring come early in Fish Haven, ID in 2026?

Spring leaf-out near 83287 came on Apr 11 in 2026, 23 days earlier than the 1991–2020 average (May 4), according to the USA National Phenology Network Spring Index.

What kind of onions grow in Fish Haven, ID?

Long-day onions: the longest day near 83287 is 15 h 15 min, so summer days reach 15+ hours, enough for long-day varieties (intermediate types work too).

Did the zone for 83287 change?

Yes. The 2012 USDA map put 83287 in zone 5a; the 2023 map puts it in zone 5b. The newer map uses 1991–2020 data and more weather stations.