FrostDateCheck

Alakanuk, AK 99554 Frost Dates

When can you plant in Alakanuk, AK?

Zone 4a

Typically, the last spring freeze lands around 06/05, roughly 281 days out. The first fall frost typically arrives around 09/03, about 88 frost-free days later.

Zone 4a (-30 to -25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Alakanuk, not a forecast for this year.

What to do before the first frost

About 1 week of growing season left in Alakanuk before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

The actual range around Alakanuk's last frost

06/05 is the middle of 30 years of NOAA records, not a promise. Plant by 05/20 and you're betting against frost in roughly 9 years out of 10. 06/26 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Alakanuk compares

Alakanuk's growing season runs about 88 days, ranking 39,951 of 40,283 US ZIP codes measured here, longest to shortest. Within AK, it ranks 227 of 269.

Learn more

the frost range covers how to read the range around Alakanuk's dates instead of trusting one. local microclimates covers what one yard in Alakanuk can differ from the 99554 normal.