Key Biscayne, FL 00949 Frost Dates
Frost dates for Key Biscayne, FL, ZIP 00949
The NOAA station nearest to 00949 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).
How Key Biscayne compares
Key Biscayne's growing season runs about 365 days, ranking 1,599 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 640 of 1,609.
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zone vs. frost date explains why Zone 13a and Key Biscayne's frost date answer different questions, and local microclimates explains what one yard in Key Biscayne can differ from the 00949 normal.