Kotzebue, AK 99752 Frost Dates
99752, near Kotzebue, AK: the frost window
The last spring frost here typically falls around 06/05, about 281 days from today. Fall's first freeze usually shows up around 09/24, roughly 110 days after the last spring frost.
Zone 2b (-45 to -40°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 Kotzebue, not a forecast for this year.
Stretching the season past the first frost
Kotzebue's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
06/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/20 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/17 and only about 1 year in 10 sees frost after that.
Kotzebue against the rest of the dataset
At roughly 110 frost-free days, Kotzebue places 39,503 of 40,283 ZIP codes in this dataset. Within AK, it ranks 172 of 269.
Learn more
Two guides worth reading on 99752: local microclimates, on what one yard in Kotzebue can differ from the 99752 normal, and zone vs. frost date, on why Zone 2b and Kotzebue's frost date answer different questions.