Keaau, HI frost dates
Last spring frostRaremost years have none
First fall frostRaremost years have none
Hardiness zone12bZone 12b
Gardening where frost is rare
Keaau, 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 Hilo 5 S, HI weather station, 11 km away (elevation 623 ft (190 m)).
Frost dates near Keaau
- Kurtistown rare frost
- Mountain View rare frost
- Pahoa rare frost
- Hilo rare frost
- Volcano rare frost
- Papaikou rare frost
- Pepeekeo rare frost
- Honomu rare frost
- Hakalau rare frost
- Ninole rare frost
Frequently asked questions
When is the last frost in Keaau, HI?
In most years Keaau, 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.