Haiku, HI frost dates
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone12aZone 12a
Gardening where frost is rare
Haiku, HI rarely or never drops to freezing, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:
- Cool-season crops (lettuce, broccoli, peas, carrots) grow best from fall through late winter.
- Warm-season crops (tomatoes, peppers, beans, squash) do best planted in late winter to spring, and again in late summer for a fall crop — midsummer heat can stop tomatoes setting fruit.
- Heat lovers (okra, sweet potatoes, melons) can be planted through spring and early summer.
About these dates
Based on 1991–2020 NOAA climate normals for the Kahului Ap, HI weather station, 13 km away (elevation 52 ft (16 m)).
Frost dates near Haiku
- Pukalani rare frost
- Makawao rare frost
- Paia rare frost
- Kula rare frost
- Kahului rare frost
- Wailuku rare frost
- Kihei rare frost
- Hana rare frost
- Puunene rare frost
- Lahaina rare frost
Frequently asked questions
When is the last frost in Haiku, HI?
In most years Haiku, HI has no frost at all. The nearest NOAA station averages 0 nights a year at or below 32°F — too few to calculate a typical frost date.