Larsen Bay, AK 99697 Frost Dates
When can you plant in Larsen Bay, AK?
Typically, the last spring freeze lands around 05/05, roughly 250 days out. The first fall frost typically arrives around 10/03, about 151 frost-free days later.
Zone 7b (5 to 10°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.
The actual range around Larsen Bay's last frost
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
About 151 days separate Larsen Bay's last and first frost, putting it 35,221 of 40,283 ZIP codes nationally. Within AK, it ranks 45 of 269.
Learn more
the frost range covers how to read the range around Larsen Bay's dates instead of trusting one. local microclimates covers what one yard in Larsen Bay can differ from the 99697 normal.