Key Biscayne, FL 00940 Frost Dates
00940, near Key Biscayne, FL: the frost window
The NOAA station nearest to 00940 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 1,598 of 40,283 ZIP codes in this dataset. Within FL, it ranks 639 of 1,609.
Learn more
Two guides worth reading on 00940: the methodology, on exactly which NOAA and USDA figures feed 00940's numbers, and zone vs. frost date, on why Zone 13b and Key Biscayne's frost date answer different questions.