Key Biscayne, FL 00687 Frost Dates
00687, near Key Biscayne, FL: the frost window
The NOAA station nearest to 00687 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).
Key Biscayne against the rest of the dataset
About 365 days separate Key Biscayne's last and first frost, putting it 1,530 of 40,283 ZIP codes nationally. Within FL, it ranks 571 of 1,609.
Learn more
Two guides worth reading on 00687: the methodology, on exactly which NOAA and USDA figures feed 00687's numbers, and zone vs. frost date, on why Zone 12b and Key Biscayne's frost date answer different questions.