Nenana, AK 99767 Frost Dates
99767, near Nenana, AK: the frost window
The NOAA station nearest to 99767 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 1b (-55 to -50°F average annual minimum).
Nenana against the rest of the dataset
Nenana's growing season runs about 80 days, ranking 40,055 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 242 of 269.
Learn more
Two guides worth reading on 99767: the methodology, on exactly which NOAA and USDA figures feed 99767's numbers, and zone vs. frost date, on why Zone 1b and Nenana's frost date answer different questions.