Coffman Cove, AK 99918 Frost Dates
When can you plant in Coffman Cove, AK?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. The first fall frost typically arrives around 10/13, about 166 frost-free days later.
Zone 8a (10 to 15°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 Coffman Cove, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Coffman Cove before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Coffman Cove's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/17 and you're betting against frost in roughly 9 years out of 10. 05/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Coffman Cove compares
About 166 days separate Coffman Cove's last and first frost, putting it 30,461 of 40,283 ZIP codes nationally. Within AK, it ranks 24 of 269.
Learn more
zone vs. frost date covers why Zone 8a and Coffman Cove's frost date answer different questions. the frost range covers how to read the range around Coffman Cove's dates instead of trusting one.