Marathon, FL 33043 Frost Dates
33043, near Marathon, FL: the frost window
The NOAA station nearest to 33043 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 11b (45 to 50°F average annual minimum).
Marathon against the rest of the dataset
At roughly 365 frost-free days, Marathon places 1,735 of 40,283 ZIP codes in this dataset. Within FL, it ranks 700 of 1,609.
Learn more
Two guides worth reading on 33043: the methodology, on exactly which NOAA and USDA figures feed 33043's numbers, and zone vs. frost date, on why Zone 11b and Marathon's frost date answer different questions.