Honolulu, HI 96773 Frost Dates

96773, near Honolulu, HI: the frost window

The NOAA station nearest to 96773 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 11a (40 to 45°F average annual minimum).

Honolulu against the rest of the dataset

At roughly 365 frost-free days, Honolulu places 165 of 40,283 ZIP codes in this dataset. Within HI, it ranks 62 of 133.

Learn more

Two guides worth reading on 96773: zone vs. frost date, on why Zone 11a and Honolulu's frost date answer different questions, and local microclimates, on what one yard in Honolulu can differ from the 96773 normal.