Joint Base Pearl Harbor Hickam, HI planting zone & frost dates

Joint Base Pearl Harbor Hickam is in USDA hardiness zone 12b. Frost is rare here: in most years temperatures do not drop to 32°F.

USDA hardiness zone12bavg. extreme winter low 55°F to 60°F

FrostRarein most years the nearest weather station records no 32°F freeze

Useful for zone 12b gardens

Drip irrigation kit — saves water in long, hot seasons
Shade cloth — protects plants from midday sun
Soil moisture meter
Plants for zone 12

As an Amazon Associate, FrostZoneMap earns from qualifying purchases, at no extra cost to you.

Nearby cities

Aliamanu / Salt Lakes / Foster Village zone 12b
Hālawa zone 12b
Waimalu zone 12b
Hālawa Heights zone 12b
Pearl City zone 12a
‘Ewa Beach zone 12b
Waipahu zone 12a
‘Ewa Gentry zone 12b

All cities in Hawaii → · Other zone 12b cities →

Questions

What growing zone is Joint Base Pearl Harbor Hickam, HI?

Joint Base Pearl Harbor Hickam is in USDA Plant Hardiness Zone 12b (average extreme winter low 55°F to 60°F), according to the USDA 2023 map.

Frost dates: NOAA U.S. Climate Normals 1991–2020, station Honolulu Intl Ap, HI (USW00022521), 3.3 km (2.0 mi) from the city center, elevation 2 m, based on 30 years of records. Hardiness zone: USDA Plant Hardiness Zone Map 2023 for the ZIP code nearest to the city center. Microclimates (valleys, hills, cities, coasts) can be warmer or colder: check the local forecast before planting. How we calculate the data.