Key Biscayne, FL 00652 Frost Dates
Key Biscayne, FL: when does the frost end?
The NOAA station nearest to 00652 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
At roughly 365 frost-free days, Key Biscayne places 1,528 of 40,283 ZIP codes in this dataset. Within FL, it ranks 569 of 1,609.
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Before leaning on 00652's figures: zone vs. frost date explains why Zone 13a and Key Biscayne's frost date answer different questions, while local microclimates explains what one yard in Key Biscayne can differ from the 00652 normal.