Frost dates in Honolulu, Hawaii

NOAA 1991–2020 normals for a 32 °F freeze. Low spots and the edge of town run colder than downtown.

Short answer

Frost is too rare in Honolulu to put a date on: at NOAA's Honolulu Intl Airport station, 5 miles from the middle of Honolulu, it hit 32 °F in fewer than 1 year in 10. Honolulu is in USDA planting zone 12b.

Weather stations around Honolulu

The first row is the date most people in Honolulu go by. The others show how far the dates move across the area.

Station	Last spring frost	First fall frost	Frost-free
Honolulu Intl Airport 5 mi away, 7 ft	Frost too rare to date (32 °F in under 1 year in 10)
Manoa Lyon Arbo 785.2 3 mi away, 500 ft	Frost too rare to date (32 °F in under 1 year in 10)
Waikiki 717.2 4 mi away, 10 ft	Frost too rare to date (32 °F in under 1 year in 10)
Kaneohe 838.1 7 mi away, 48 ft	Frost too rare to date (32 °F in under 1 year in 10)
Waihee 837.5 9 mi away, 108 ft	Frost too rare to date (32 °F in under 1 year in 10)

Distances are from the middle of Honolulu as the Census Bureau maps it. The average date is NOAA's 50% date: half of years have a later last frost, or an earlier first one. Plan by the 1-in-10 date if a freeze would cost you plants. The planting zone is the USDA 2023 zone for ZIP code 96813, at the middle of the city.

Your exact ZIP code

Honolulu covers a lot of ground. For the station nearest your own street, and its planting zone, type your ZIP code.

How these dates work

Frost dates come from NOAA's 1991 to 2020 Climate Normals, which work out from each weather station's daily lows how likely the last spring freeze and the first fall freeze (32 °F) are by each date. We use the station nearest the middle of your ZIP code and show its height and distance, since a station on a hill or by a lake can differ from your yard.

The average date is the 50% date: half of years have a freeze after the spring date or before the fall one. The 1-in-10 dates are NOAA's 10% dates, the ones to plan by if a late freeze would cost you plants. Within one yard, cold air pools in low spots while walls and paving hold heat, so some corners freeze before others.

More frost dates

All of Hawaii, station by station.

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