Key Biscayne, FL 00703 Frost Dates
Frost dates for Key Biscayne, FL, ZIP 00703
The NOAA station nearest to 00703 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).
How Key Biscayne compares
Key Biscayne's growing season runs about 365 days, ranking 1,534 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 575 of 1,609.
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zone vs. frost date explains why Zone 12b and Key Biscayne's frost date answer different questions, and local microclimates explains what one yard in Key Biscayne can differ from the 00703 normal.