Honolulu, HI 96840 Frost Dates
Frost dates for Honolulu, HI, ZIP 96840
The NOAA station nearest to 96840 does not report a usable frost-date normal for either event, so no last-frost or first-frost figure is shown here. The USDA hardiness zone below is still real: Zone 12b (55 to 60°F average annual minimum).
How Honolulu compares
At roughly 365 frost-free days, Honolulu places 219 of 40,283 ZIP codes in this dataset. Within HI, it ranks 116 of 133.
Learn more
local microclimates explains what one yard in Honolulu can differ from the 96840 normal, and the methodology explains exactly which NOAA and USDA figures feed 96840's numbers.