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

Planting zone for 96763 — Lanai City, HI

ZIP code 96763 (Lanai City, Maui County) is in USDA zone 12b: the coldest winter night averages 55 to 60 °F.

Where ZIP 96763 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.

Zone12b55 to 60 °F
Coldest night12.8 to 15.6 °C
Last frostrare
First frostrare
2012 zone12a

Was 12a 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 12b means →

Frost forecast — next 7 nights

live from the National Weather Service

Loading the forecast for Lanai City, HI…

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

Frost is rare or absent here: Lanai City, HI is in zone 12b, where the coldest night of a typical winter stays above freezing. Cool-season vegetables grow best from fall through spring; summer heat, not frost, is the limit.

Native plants for zone 12b in Hawaii

37 plants native to Hawaii, recorded in Hawaii, and rated by the USDA to survive 55 °F or colder — the bottom of zone 12b. Each links to its USDA PLANTS profile.

Trees 7

Shrubs 12

Wildflowers & perennials 8

Grasses 10

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 Lanai City, HI.

Soil in Lanai City, HI

The soil mapped at the center of ZIP 96763 is Waihuna — clay, well drained.

TextureClayholds water and nutrients; slow to drain and warm up
pH5.3strongly acidic; most vegetables like 6.0–7.0
DrainageWell drainednatural drainage class
Organic matter2.3%moderate
Hydrologic groupCwater soaks in slowly
Farmland classPrime farmland if irrigatedUSDA classification

Map unit: Waihuna clay, 0 to 3 percent slopes, MLRA 158.

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 96763; soils change within a few hundred feet, so a home soil test (pH, nutrients) is still the best guide.

Climate in Lanai City, HI

Summer high83 °Faverage high, July
Winter low60 °Faverage low, January
Hot days0days a year at 90 °F or more
Freezing nights0nights a year at 32 °F or less
Growing degree days7,858base 50 °F — the season’s usable heat
Longest day13 h 24 mindaylight on June 21
Shortest day10 h 52 mindaylight on December 21
Onions to growShort-daysummer days stay under about 14 h 20 min, so long-day varieties won’t bulb
Precipitation27.4 inper year, rain and melted snow

Average high and low, by month

50°60°70°80°90°January: average high 76 °F, low 60 °F 76°60° JanFebruary: average high 76 °F, low 60 °F 76°60° FebMarch: average high 77 °F, low 61 °F 77°61° MarApril: average high 78 °F, low 61 °F 78°61° AprMay: average high 80 °F, low 63 °F 80°63° MayJune: average high 82 °F, low 65 °F 82°65° JunJuly: average high 83 °F, low 66 °F 83°66° JulAugust: average high 83 °F, low 67 °F 83°67° AugSeptember: average high 83 °F, low 67 °F 83°67° SepOctober: average high 82 °F, low 66 °F 82°66° OctNovember: average high 79 °F, low 64 °F 79°64° NovDecember: average high 77 °F, low 62 °F 77°62° Dec

Precipitation by month inches

0″1″2″3″4″January: 3.30 in precipitation 3.3 JanFebruary: 3.24 in precipitation 3.2 FebMarch: 2.96 in precipitation 3.0 MarApril: 2.22 in precipitation 2.2 AprMay: 1.56 in precipitation 1.6 MayJune: 1.42 in precipitation 1.4 JunJuly: 1.30 in precipitation 1.3 JulAugust: 1.11 in precipitation 1.1 AugSeptember: 1.35 in precipitation 1.4 SepOctober: 2.99 in precipitation 3.0 OctNovember: 2.71 in precipitation 2.7 NovDecember: 3.26 in precipitation 3.3 Dec

NOAA NCEI U.S. Climate Normals 1991–2020 — temperature: Lanai Airport 656, HI (4 mi away); precipitation: Lanai City 672, HI (within 1 mile). Daylight is calculated from latitude.

Nearby ZIP codes

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

Hawaii planting zones →

Questions about 96763

What planting zone is ZIP code 96763?

ZIP code 96763 (Lanai City, HI) is in USDA hardiness zone 12b on the 2023 map: the coldest night of an average winter reaches 55 to 60 °F (12.8 to 15.6 °C).

How much rain and snow does 96763 get?

About 27.4 inches of precipitation a year (NOAA 1991–2020 normals, Lanai City 672 station).

How hot do summers get in Lanai City, HI?

The average high peaks at 83 °F in July, with about 0 days a year at 90 °F or more.

What kind of soil does 96763 have?

The USDA soil survey maps Waihuna at the center of ZIP 96763: clay, well drained, pH about 5.3 (strongly acidic).

What kind of onions grow in Lanai City, HI?

Short-day onions: the longest day near 96763 is 13 h 24 min, so summer days stay under about 14 h 20 min, so long-day varieties won’t bulb.

Did the zone for 96763 change?

Yes. The 2012 USDA map put 96763 in zone 12a; the 2023 map puts it in zone 12b. The newer map uses 1991–2020 data and more weather stations.