Key Biscayne, FL 00920 Frost Dates
Key Biscayne, FL: when does the frost end?
The NOAA station nearest to 00920 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 1,580 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 621 of 1,609.
Learn more
Before leaning on 00920's figures: the methodology explains exactly which NOAA and USDA figures feed 00920's numbers, while zone vs. frost date explains why Zone 13a and Key Biscayne's frost date answer different questions.