Haverhill, FL 33415 Frost Dates
33415, near Haverhill, FL: the frost window
The NOAA station nearest to 33415 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 10b (35 to 40°F average annual minimum).
Haverhill against the rest of the dataset
Haverhill's growing season runs about 365 days, ranking 1,947 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 862 of 1,609.
Learn more
Two guides worth reading on 33415: zone vs. frost date, on why Zone 10b and Haverhill's frost date answer different questions, and local microclimates, on what one yard in Haverhill can differ from the 33415 normal.