Larsen Bay, AK 99608 Frost Dates
When can you plant in Larsen Bay, AK?
Around 05/05 is the usual last spring frost, about 250 days away. The first fall frost typically arrives around 10/03, about 151 frost-free days later.
Zone 7a (0 to 5°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 Larsen Bay, not a forecast for this year.
What to do before the first frost
About 5 weeks of growing season left in Larsen Bay before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Larsen Bay compares
At roughly 151 frost-free days, Larsen Bay places 35,219 of 40,283 ZIP codes in this dataset. Within AK, it ranks 43 of 269.
Learn more
zone vs. frost date covers why Zone 7a and Larsen Bay's frost date answer different questions. the frost range covers how to read the range around Larsen Bay's dates instead of trusting one.