Key Biscayne, FL 00922 Frost Dates
00922, near Key Biscayne, FL: the frost window
The NOAA station nearest to 00922 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 13a (60 to 65°F average annual minimum).
Key Biscayne against the rest of the dataset
Key Biscayne's growing season runs about 365 days, ranking 1,582 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 623 of 1,609.
Learn more
Two guides worth reading on 00922: the methodology, on exactly which NOAA and USDA figures feed 00922's numbers, and zone vs. frost date, on why Zone 13a and Key Biscayne's frost date answer different questions.