FrostDateCheck

Allakaket, AK 99720 Frost Dates

Allakaket, AK: when does the frost end?

Zone 1a

The last spring frost here typically falls around 05/22, about 267 days from today. Fall's first freeze usually shows up around 08/24, roughly 94 days after the last spring frost.

Zone 1a (-60 to -55°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 Allakaket, not a forecast for this year.

Protecting what you plant early

Allakaket is roughly 38 weeks out from its last frost — a row cover over young plants buys protection on the cold nights before then.

Why 05/22 isn't a guarantee

05/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/11 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/05 and only about 1 year in 10 sees frost after that.

Allakaket against the rest of the dataset

About 94 days separate Allakaket's last and first frost, putting it 39,856 of 40,283 ZIP codes nationally. Within AK, it ranks 211 of 269.

Learn more

Before leaning on 99720's figures: the frost range explains how to read the range around Allakaket's dates instead of trusting one, while local microclimates explains what one yard in Allakaket can differ from the 99720 normal.