Key Biscayne, FL 00979 Frost Dates
00979, near Key Biscayne, FL: the frost window
The NOAA station nearest to 00979 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 13b (65 to 70°F average annual minimum).
Key Biscayne against the rest of the dataset
At roughly 365 frost-free days, Key Biscayne places 1,624 of 40,283 ZIP codes in this dataset. Within FL, it ranks 665 of 1,609.
Learn more
Two guides worth reading on 00979: zone vs. frost date, on why Zone 13b and Key Biscayne's frost date answer different questions, and local microclimates, on what one yard in Key Biscayne can differ from the 00979 normal.