Key Biscayne, FL 00937 Frost Dates
Key Biscayne, FL: when does the frost end?
The NOAA station nearest to 00937 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 1,596 of 40,283 ZIP codes in this dataset. Within FL, it ranks 637 of 1,609.
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Before leaning on 00937's figures: zone vs. frost date explains why Zone 13b and Key Biscayne's frost date answer different questions, while local microclimates explains what one yard in Key Biscayne can differ from the 00937 normal.