Fairbanks, AK 99774 Frost Dates
99774, near Fairbanks, AK: the frost window
The NOAA station nearest to 99774 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 1a (-60 to -55°F average annual minimum).
Fairbanks against the rest of the dataset
Fairbanks's growing season runs about 80 days, ranking 40,042 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 240 of 269.
Learn more
Two guides worth reading on 99774: local microclimates, on what one yard in Fairbanks can differ from the 99774 normal, and the methodology, on exactly which NOAA and USDA figures feed 99774's numbers.